Thursday, August 31, 2006

2006/08 Reading list archive (Final)

This is the archive of the reading list on the side-bar. It is just a random collection of items I have read recently. It does not neccessarily have to represent my view (in fact, I may disagree with some of the POV), but I think they are interesting on their own. I do not think I am doing a linkfest, which I thought should have certain theme or professed value, it is simply a slightly organized (and slected) form of my de.licio.us.

There will be one archive per month, so I will be moving items from the side-bar into this post through this month, and create another post in September

China

Rest of Asia


World

Strategy

Misc

Places I have been to

Inspired by The 88s.

Places I have visited
  • Red: more than once, overnight each time, knows the streets without a map
  • Blue: overnight, at least 12 hours
  • Purple: spent at least 6 hours during the day (i.e. outside an office), ate meals, saw the cities/talked to people -- "driving by" or "airport transit" does not count
  • Brown: various places in the area (mainly leisure travelling), more than 24 hours but not neccessarily in one specific location
Click image to see details
MyMaps at MapBuilder.net
Categories:

Wednesday, August 30, 2006

Predicting RMB exchange rate - Ronald McKinnon

Ronald McKinnon examined the interest rate differential between RMB and USD, observed that the return for putting the money in RMB and USD are approximately the same over a year, and speculates (and suggestes) that this may be how the target zone for RMB is managed.
  • 1 year bond yield for USD is 5.7% (spot in London, May 2006), meanwhile PBOC's 1 year RMB bond yield is 2.6%. interest rate differential 3.1%
  • cumulative appreciation for RMB from Jul/21/2005 to Jul/21/2006 is 3.28%, approximately equals the interest rate differential
Yes, the exchange rate will be managed such that it would be hard for the speculator to profit, as I have speculated a year ago,or other investment pathway neutral rationale. McKinnon has provided the economic rationale (of inflation targeting) for managing such target. The quantitative results are similar.

Does this mean speculators can pack and go home? Not really, if you are really good, you could spot the discrepany (e.g. 2H 2005 vs 1H 2006) and make some reasonable profit, but the rate of return will only be proportional to your effort and risk.

McKinnon's Original in op-ed in WSJ requires subscription but cached temporarily below.
A Chinese translation is available here.

---
The Yuan and the Greenback
Ronald I. McKinnon. Wall Street Journal.(Eastern edition). Aug 29, 2006. pg. A.14

China's central bank anchored the national price level from 1994 to Sept. 21, 2005, by keeping its currency, the yuan, fixed at 8.28 yuan to the U.S. dollar. The policy was a great success: Over that period, China's consumer price inflation dropped to around 1% to 2%, from more than 25%, and inflation-adjusted GDP grew at a healthy 9% to 10% clip per year.

Today, however, the U.S. monetary anchor isn't as stable as it once was. U.S. inflation is spiraling up, with consumer prices rising to 4.1% and producer prices to 4.2% on a year-on-year basis through last July. Clearly, China's foreign monetary anchor is slipping. Worse, the Federal Reserve Bank has been indecisive about caging the inflation dragon, leaving the interbank federal funds rate at just 5.25% -- an unduly stimulatory level -- at its August meeting.

So what should China do? Since July 21 last year, when the People's Bank of China unhooked the yuan and allowed a discrete appreciation of 2.1%, the mainland's policy makers have allowed the currency to appreciate slowly. The total appreciation equaled 3.3% after a year -- and seems to be continuing at about this annual rate.

The initial motive for unhooking China's peg to the dollar was probably to defuse -- or confuse -- misguided American political pressure to appreciate the yuan's value versus the greenback. The premise of such arguments, that yuan appreciation would reduce China's large and growing trade surplus, is widely held but wrong. The trade imbalance between China and the U.S. results from China's high savings combined with the opposite tendency in the U.S., neither of which is predictably affected by changing the yuan-dollar exchange rate.

China's inflation is, however, predictably affected by sustained exchange-rate changes. Although unhooking the yuan-dollar exchange rate to reduce China's trade surplus was wrongly motivated, the subsequent small appreciation has had a positive effect: It's helped to insulate China from surprisingly high U.S. inflation. So should small controlled exchange appreciation now become China's monetary guideline for maintaining internal price stability?

Consider the evidence: China's consumer price inflation registered just 1% over the year through last July, while the U.S. rate hit 4.1%. This inflation differential of 3.1 percentage points was consistent with the yuan's appreciation of 3.3% year over year, as the chart nearby shows. That the inflation differential mimicked the appreciation so closely is partly a statistical coincidence, and probably unlikely to happen again. Nevertheless, cause and effect are also important. Beyond just U.S.-China trade, the dollar is an international currency widely used for pricing foreign trade in goods and services in Asia and the world. When a highly open economy such as China's gears its domestic monetary policy to a slow, but well signaled, appreciation against the dollar, its price inflation can be expected to fall correspondingly below the American rate.

This reasoning leads to a new monetary rule for China: Pick some target rate for annual inflation in China's CPI, say 1% (it could be as high as 2%), then see how much higher American inflation, say 4.1%, is above China's internal target rate. The difference, in this case 3.1%, then becomes the planned annual gradual appreciation of the yuan rate against the dollar. As is already the case, the exchange rate would be tightly controlled by China's central bank, with only tiny movements on a daily basis -- around which the narrow band fluctuations would continue. And the exact timing of these movements would be arbitrary, so that speculators don't get any free lunches. Finally, if Fed Chairman Ben Bernanke does succeed in reducing American inflation, China's exchange rate appreciation would slow accordingly -- and stop altogether when American inflation stabilizes at China's internal target rate.

Although this new monetary-cum-exchange-rate rule is straightforward enough, it has strong implications for the behavior of yuan interest rates. Those that are not officially pegged are already endogenously determined by the expected path of the exchange rate. The chart shows the paths of one-year interest rates for China and the U.S., and the corresponding yield spread. In May, the yield on dollar bonds quoted in London was 5.7%, while the yield on bonds issued by China's central bank was 2.6% -- a spread of just 3.1%. The chart then superimposes the path of the yuan's appreciation since July 21, 2005. Remarkably, by July 2006, the two curves conjoin: The 3.28% appreciation over the year roughly equals the interest differential! Investors in yuan assets were willing to accept a lower return because they expected the yuan to appreciate a little over 3%. This interest differential of 3% or so will continue as long as investors project that the yuan will continue to appreciate by that amount -- as per our new monetary rule for targeting China's domestic rate of price inflation at a lower level than in the U.S.

It is important to keep the rate of yuan appreciation moderate and in line with the inflation differential between the two countries. Suppose the rate of appreciation was accelerated to 6%, with U.S. inflation remaining at 4.1% and the dollar interest rate at 5.7%. Financial markets, which are quick to adjust, would bid interest rates on yuan assets toward zero -- from which they would be bounded from below: the infamous liquidity trap. In goods markets, where prices are slower to adjust, inflation would begin to fall below the 1% target -- and then could even fall below zero, so as to create outright deflation.

Alternatively, suppose that U.S. inflation slowed to, say, 2% and dollar interest rates came down toward 3%. Then, if China's central bank stayed with its current policy of a slightly more than 3% annual appreciation of the yuan, Chinese interest rates would again be forced toward zero, with the threat of outright deflation in the general price level. Instead, the correct strategy for China's central bank then becomes to slow the rate of appreciation to 1% per year, or slightly less.

Floating the yuan, which would lead to a large initial appreciation, would be a major policy mistake. China's trade surplus would continue unabated, with a continued accumulation of dollar claims by the private sector that would force successive appreciations of the yuan until the central bank was again forced to intervene and stabilize the rate at a much appreciated level. By then, expectations of ongoing appreciation and deflation in China would be firmly in place. That scenario could mimic what happened to Japan with its ever higher yen in the 1980s through the mid-1990s -- a deflationary slump, coupled with a zero interest liquidity trap and its "lost" decade of the '90s.

The bottom line is that China's central bank must carefully watch inflation and interest rates in the U.S. when formulating its own exchange-rate-based monetary strategy. Any exchange-rate changes against the dollar should be tightly controlled and gradual -- as with the appreciation over the past year.

---

Mr. McKinnon, professor of economics at Stanford, is author of "Exchange Rates under the East Asian Dollar Standard: Living with Conflicted Virtue" (MIT Press, 2005).


Categories:

Friday, August 25, 2006

The lesson of Taiwan

Much has been said about how Taiwan' economy went into the doldrums since 2000, coincidentally after Chen Shui Bian took control of the government. While it is clear that the DPP government was initially inexperienced and has been bogged down by ideology, there are so many factors (both internal and external) that could influence the economic development, it is impossible to pinpoint conclusively that it is a result of government incompetence or its ostensible denial of the China factor.

To be sure, Lee Tenghui's KMT government in the 1990s also discouraged investment in the mainland. Therefore, one cannot simply blame CSB's interference for the deterioration since he took over. However, in 1990s Lee's regime needed to deal with the opposition inside KMT and the "anti-China" factions had not consolidated their power base yet. So the damage LTH's government could inflict was much smaller than CSB's.

The often cited defense for CSB were external factors such as the tech crash between 2000-2002. However, one only needs to compare Taiwan with Korea (which has a similar industry and economic profile and exposure to tech sector) to refute such apologies.

As a believer in free market economy, I think any interference from the goverment (whether retricting or forcing business to go to any market, China or SE Asia) is a bad thing. Decisions are better left to the business owners themselves. To further elaborate on this point, Associate Professor Hong Lung-tsai of Taiwan Economic Research Institute offered some great analysis in today's Apple Daily Taiwan (also cached below)
  • Frequent change in leadership (i.e. Minister of Economy) paralyse long term policy, if there is any
  • Political appeals lead to emphasis on redistribution of wealth [one should not blame DPP for this, as this is typical of any democracy]
  • Vicious circle of outsourcing research of economic policies to under-funded external think tanks, resulting in decline in quality [the author noted this is also not entirely DPP's fault, as it merely followed KMT practice. But the author weighed in to say that the problem was obvious that DPP should have done something to change that]
Hong finally talked about the China investment issue. He wrote, "Large amount of overseas investment has its pros and cons, but if the profit cannot be repatriated to home, this is defintely a minus. Today 70% of Taiwan's investment outside the island concentrates in the mainland China market, the government has imposed various restrictions to these investment [and re-investment] and the result is that enterprises become reluctant and unwilling to repatriate profit back to Taiwan [scared by the restriction imposed upon them when re-investment is needed], this exacerbates the negative impact of Taiwan's external investment."

Hong is right. For every restriction a bureacracy impose, there is a trick to bypass invented by savy businessmen. Result: bureacratic objective fails, but cost of operation for businesses hikes. Taiwan's restriction in mainland investment (40% of net asset) has led to the effect diametrially opposite to its objective, i.e. profits will stay in the mainland. In addition, capital employment by Taiwanese companies become less efficient, as effort was spent on working against the restriction. This lesson has been learned many times by the CCP government in the mainland (上有政策,下有对策) and it seems now that CCP has finally got it. Unfortunately, as long as political ideology continues to overshadow pragmatism in Taiwan, CSB's government has no incentive to fix the economy. Nor will KMT (as it now seems very likely to win in 2008) care much when it takes rein in future.

-----
715觀點 民進黨政治經驗害了經濟

民進黨的經濟政策向來被認為是最薄弱與模糊的一環。原因固然多端,但絕對與該黨在取得政權的過程中,藉由「認同政治」與「解構黨國資本主義」兩項訴求即可輕易得分的經驗高度相關,導致更須耗時費力以求細膩的「政策研議與注意力」普遍不足。

而對經濟事務的不夠嫻熟,好的經濟政策每多訴諸長期才能奏效,以及經濟政策往往涉及財富重分配等,都是促使善打政治算盤的民進黨,在經濟領域著力不深與避重就輕的根本原因。
換句話說,民進黨經濟政策的薄弱與模糊,不僅有其客觀限制與歷史成因,部分因素也出自理性計算下的刻意忽略。

頻換部長抵銷優勢
然而,不重視經濟政策此一執政前不失分的特點,一旦當家執政後卻面臨嚴重考驗,而不曉得如何替自己的經濟政策與執政績效辯護,還只是所有後遺症裡面最輕微的一項。所以到現在還可以聽到執政大員的辯辭:外匯存底在民進黨執政之後有增加多少。其實過多的外匯存底正意味著該國的資源配置出現問題呢。
至於執政之後所獲得的行政體系支援優勢,卻也由於頻換內閣與財經部長而受到抵銷。
此外,由於政府各部會本身的政策研析能力有限,重大經濟政策分析與研擬多半委託國內「智庫」加以處理。這種大量將「公共政策商業化」的模式,不僅舉世罕見,也迫使自有財源嚴重不足的國內智庫必須承接更多研究案來維持營運,往往造成研究品質堪慮與政策形成過程缺乏嚴謹支撐。當然,民進黨並非此一原本不該有狀況的始作俑者,但在台灣面臨全球化與中國崛起等兩大力道分合夾擊時,民進黨政府卻仍放任國內政策研究環境持續惡化,不知或不思改善之道,可謂難辭其咎。
台灣經濟成長趨緩已是不爭事實,從2000至2005年以來,平均每年經濟成長率已降至3.57%,低於全球的每年平均3.88%。經濟成長遇到瓶頸乃事屬必然,但在四小龍當中也「系統性」的殿後,顯然已見警訊。而一旦經濟成長趨緩,不僅會降低國內投資意願,影響未來經濟成長,形成惡性循環,同時也將加速國內廠商產業外移。
而為全球化與中國經濟崛起所誘發、劇烈且近乎全面的產業外移,已然構成台灣經濟社會最嚴酷的挑戰,包括產業如何升級並填補,尤其是高品質與高生產力的服務業之出現。
台灣對外投資的金額累計已高達GDP(Gross Domestic Product,GDP)的4成(南韓只有6%),不僅高於世界平均的24%,也大過工業國家的30%,而和歐盟國家相當。唯須注意的是,工業國家的對外投資多半屬於購併行為,而台灣絕大部分都是新創設的對外投資。這也隱含著台灣的對外投資模式,對本國經濟所產生的衝擊必然相當深遠。
大量的海外投資利弊互見,但如果對外投資的利潤未能匯回母國,卻絕對不利。而目前台灣的對外投資7成以上集中在中國一地,加上由於政府的各種限制造成台商不願輕易將利潤回流台灣,此一局面也加深了台灣對外投資對於本地經濟的不利影響。民進黨的國家安全思維的確用心良苦,但管制政策務必符合經濟邏輯,否則說服不了別人,尤其是在當今,「對外投資」往往成為企業重要發展策略的全球化年代。

實質工資成長率低
最後,產業外移所引發的分配議題也不容等閒視之。近年來台灣實質工資的成長率比經濟成長率更低,也意味著所得分配惡化,部分原因即在於不具「跨國移動」優勢,特別是低階技術勞工,相當容易受到產業外移的負面影響,包括必須接受其他行業的較低工資甚至失業。
從這個角度來看,擴大內部照顧,藉由完善的社會安全制度來加大對外經貿開放空間,不失為一種兼具公平與效率的經濟政策。

作者為台灣經濟研究院副研究員 洪財隆
Categories:

Monday, August 21, 2006

Blogspot unblocked in China again

Between Aug 1 and Aug 8 this site recorded only 9 unique visitors from mainland China (officially), all out of Beijing and Shanghai, except one from Xiamen, Fujian.

From Aug 9 to Aug 16 there were 107 unique visits, a 12-fold increase despite light blogging. Visits originated from Beijing, Shanghai, Chongqing, Guangzhou, Shenzhen, Dongguan, Yancheng(JS), Changzhou, Wuxi, Xiamen, Ningbo, Hangzhou, Urumqi, Chengdu, Changsha, and other cities (for which google analytic was notr able to name) in Shanxi, Hunan, Shandong.

In the last 5 days (Aug 17-22), visits from mainland China have surged to the 3rd place (after US, HK), adding locations such as Wuhan, Tianjin, Foshan, etc. Based on IP log mainland China has ranked outside of the top 20 countries for this blog.

It seems blogspot has been unblocked in China since Aug 9th, and that more and more provinces are unblocking. Let's hope it will not dissappoint us this time.
Categories:

Commodity peg to export price vs peg to import price

Jeff Frankel examined the impact of commodity price and menetary policy. He proposed to "Peg the Export Price" (PDF, HTML)
  • This idea is a much moderate version of a more exotic-sounding proposed monetary regime that I have written about elsewhere, called Peg the Export Price – or PEP, for short. I have proposed PEP explicitly for those countries that happen to be heavily specialized in the production of a particular mineral or agricultural export commodity. The proposal is to fix the price of that commodity in terms of domestic currency, or, equivalently, set the value of domestic currency in terms of that commodity. For example, African gold producers would peg their currency to gold – in effect returning to the long-abandoned gold standard. Canada and Australia would peg to wheat. Norway would peg to oil. Chile would peg to copper, and so forth. One can even think of exporters of manufactured goods that qualify: standardized semi-conductors (that is, commodity chips) are sufficiently important exports in Korea that one could imagine it pegging to the won to the price of chips.

    How would this work operationally? Conceptually, one can imagine the government holding reserves of gold or oil, and intervening whenever necessary to keep the price fixed in terms of local currency. Operationally, a more practical method would be for the central bank each day to announce an exchange rate vis-à-vis the dollar, following the rule that the day’s exchange rate target (dollars per local currency unit) moves precisely in proportion to the day’s price of gold or oil on the London market or New York market (dollars per commodity). Then the central bank could intervene via the foreign exchange market to achieve the day’s target. Either way, the effect would be to stabilize the price of the commodity in terms of local currency. Or perhaps, since these commodity prices are determined on world markets, a better way to express the same policy is stabilizing the price of local currency in terms of the commodity.11 The PEP proposal can be made more moderate, and more appropriate for diversified economies, in a number of ways.12 One is to interpret it as targeting a broad index of all export prices, rather than the price of only one or a few export commodities. This part of the paper proposes targeting just such an export price index. This moderate form of the proposal is abbreviated PEPI, for Peg the Export Price Index.13 The argument for the export targeting proposal, in any of its forms, can be stated succinctly: It delivers one of the main advantages that a simple exchange rate peg promises, namely a nominal anchor, while simultaneously delivering one of the main advantages that a floating regime promises, namely automatic adjustment in the face of fluctuations in the prices of the countries’ exports on world markets. Textbook theory says that when there is an adverse movement in the terms of trade, it is desirable to accommodate it via a depreciation of the currency. When the dollar price of exports rises, under PEP or PEPI the currency per force appreciates in terms of dollars. When the dollar price of exports falls, the currency depreciates in terms of dollars. Such accommodation of terms of trade shocks is precisely what is wanted. In recent currency crises, countries that suffered a sharp deterioration in their export markets were often eventually forced to give up their exchange rate targets and devalue anyway; but the adjustment was far more painful -- in terms of lost reserves, lost credibility, and lost output -- than if the depreciation had happened automatically.

    The desirability of accommodating terms of trade shocks is a particularly good way to summarize the attractiveness of export price targeting relative to the reigning champion, CPI targeting. Consider the two categories of adverse terms of trade shocks: a fall in the dollar price of the export in world markets and a rise in the dollar price of the import on world markets. In the first case, a fall in the export price, you want the local currency to depreciate against the dollar. As already noted, PEP or PEPI deliver that result automatically; CPI targeting does not. In the second case, a rise in the import price, the terms-of-trade criterion suggests that you again want the local currency to depreciate. Neither regime delivers that result. But CPI targeting actually has the implication that you tighten monetary policy so as to appreciate the currency against the dollar, by enough to prevent the local-currency price of imports from rising. This implication – reacting to an adverse terms of trade shock by appreciating the currency – seems perverse. It could be expected to exacerbate swings in the trade balance, and output.

A couple comments on Frankel's proposal
  • An anchor as Frankel proposed basically a controlled "free floating", i.e. taking a few of the most important market drivers and actively manage the "peg" accordingly, mimicing what free float would do, but excluding market drivers which are not in the 'recipe'. The effect is, the currency would appreciate when the demand for one's export is high and vice versa.
  • The benefit is that it provides a relatively objective measure for the exchange rate, so that speculation factors are partially excluded (speculators cans still indirectly bet on the underlying commodity, but that would be much less efficient as it impacts a lot more countries)
  • When the 'peg' is controlled, overshoot (such as 1997 Thai Baht) can be avoided
  • However, with every benefit it comes with a price. In this case, the anchoring and hence the unfriendliness/inconvenience for speculation would also mean that the currency regime would become "metastable" as market hedging is more difficult -- but this is a minor inconvenience as one can still speculate/hedge even on a fixed peg (e.g. non-deliverable forward for RMB)
  • That commodity price (or a basket of commodity index) is chosen as the proxy is simply because it is standardizable and tradable (and that it is a 'fundamental' price driver). There is no theoretical (only pratical/technical) hurdle to pegging to the price of T-shirts, furniture, computers or anything that sells in Walmart (and "made in China"). However, these are 'secondary products' and the prices are dirven by that of more fundamental cost drivers such as commodity, energya nd labor. In an ideal model one could take everything a country exports minus everything it imports. However, for an anchor only a selection is good enough (and at least better than the more arbitrary peg to USD or some currency basket).
Frankel also commented on the issue of "peg-to-import-price"
  • But for a country that is a net importer of oil, wheat, and other mineral and agricultural commodities, such a peg gives precisely the wrong answer in a year when the prices of these import commodities go up. Just when the domestic currency should be depreciating to accommodate an adverse movement in the terms of trade, it appreciates instead. Switzerland should not peg to oil, and Norway should not peg to wheat.
This deserves some discussions.

While Frankel made a generally good argument on the disadvantage of pegging to the import price, it is for a simple economy prior globalization. In today's world the matter seems to be a lot more complicated. For example, the oil and steel China imports are largely re-exported, both directly as products (hammers & nails, plastic toys) and indirectly (the machine and buildings that house the factories, and the power consumed by the manufacturers). Therefore, to determine whether an item (commodity in this case) should be present in the peg basket we should need to look at the overall export and import flow together.

If fact, peg-to-export may not be a good proxy to use for countries which re-export is a major component in its GDP. e.g. Singapore exports a lot of refined petroleum and petrochemical products. But it is unclear if Singaporean Dollar should be pegged to the price of petrochemical products for this reason. It would make more sense, if there is a system where Singapore's petrochemical industry would realize its value-added more or less unaffected by the short term fluctuation in oil price. This could be achieved if both the import price of its raw materials and export price of its products could somehow be linked. It could be achieved if Singapore Dollar is related to the price of oil and the petrochemical products it re-exports. Of course, Singapore has a lot more industries, and oil should only be one component of its basket. Moreover, Singapore is a small country, with signifcant value of its GDP in tertiary industry (IT, service, etc) the complexity for operating an elaborate commodity peg may not be as viable as a simple currency basket peg as it uses today.

For China, being a much large country, currency may present an new problem. Because its economy is so large that it affects the value of the currency it pegs onto. This is the main complain from the US. IMO China's currency reform is necessary not because of the trade imbalance. It is the responsibility of US itself to solve its imbalance problem. But China should not (unintentionally) prevent USD from depreciating against other currencies in the world through the RMB peg. Therefore, there are reasons for China to peg its currency to something other than other countries' currencies.

The most convenient choice, as Frankel proposed, the commodity peg. The commodities China can choose are 1) what it exports 2) what goes through in its process/re-export industry.

Since China today is a net importer for most commidities (both agricultural and industrial), (1) does not work. What China exports is actually semi-skilled labor, and China is the largest exporter of labor in the world. China is, therefore, the largest factor in determining the price of semi-skilled labor. Its currency rate affects the pricing of its primary export. Therefore, even if we can standardize the price of semi-skilled labor, it still does not qualify as a content of the RMB peg. Because, it is not independent enough to act as a measure for practical purpose, otherwise we are entering into a loop of circular formula.

As a result, we are left with only option (2). Therefore, if China is to peg its currency to a basket of commodities, the rationale will be to make the cost of its re-export transparent to its economy, or in other words, a currency that automatically hedges against the change in raw material costs. Following this rationale, the content and respective weight of the commodity basket can be determined.

---
Note: the implementation: Frankel offer some guideline in this paper. You can also see my earlier post on commodity basket.
Categories:

Sunday, August 13, 2006

"Brain damage from one way of loving Taiwan" - Tu Chenhua

The essay attached below is written by Tu Chen-hua, associate professor, Institute of National Development, Taiwan University.

The author examined the claim that investment in mainland China apparently leads to reduction in investment inside the island of Taiwan.

He took the investment data of all Taiwanese companies from 1991 to 2005 and calculated the correlation coefficient, x=investment in mainland, y=investment in Taiwan

  1. correlation coefficient = -0.83 for the period of 1991 to 2005. So apparently the data supports the claim, the 2 investment numbers are anti-correlated
  2. He then break the data series into 2 parts. Lee Tenghui era (1991-1999) and Chen Shui-Bain era (2000-2005). Then the correlation coefficient for 1st series is -0.02. 2nd series -0.71. i.e. no correlation during LTH era, but anti-correlation during CSB era.
  • Technical note: those who are not familiar with statistics may wonder how the "sum" of -.02 and -0.71 would produce an out-of-range -0.83, suffice it to say the difference in "end-data" (i.e. 1991 and 2005) plays a much larger role in linear correlation. i.e. -0.83 is mostly determined by comparing 1991-92 numbers with 2004-05 numbers. An extreme example: 1990:1; 1991:1.....2004,0.9; 2005; 0.95.
The conclusion: there is clearly a counter-example (1991-1999 series) for the zero-sum hypothesis . So the competition for investment capital is not the main factor for explaining the apparent anti-correlation from 2001-2005. Tu concluded that too much love could generate fever, and leads to "brain damage".

The authors proposed a few hypothesis for the decrease in investment inside Taiwan

  • Decrease in investment in Taiwan is mainly a result of deteriorating investment environment in Taiwan, due to factors such as erratic changes in economic policies and decisions (so that enterprises are wary about long term investments)
  • The growth in investment in mainland China is due to improving environment
To see if there is a constrain in overall sum available for investment, we can look at this chart.
While the % of investment in mainland increased steadily, the total amount of investement by Taiwanese companies (in Taiwan and in mainland) decreased significantly during the period. This would explain the slowing down of the economy in Taiwan. Taiwanese business have lost the entrepreneurship and willingness to invest for future. The result has already been observed in the past few years. The remedy is not to discourage investment in the mainland (the businessmen must believe they can make a lot money, and repatriate to Taiwan to spend, if they are willing to take the 6-10 hour flight ordeal), but to better the investment environment in Taiwan. And it is not neccessarily a zero sum game.

p.s. LTH is very outspoken about curbing investment in China these days. But I doubt if this is what he would do if he still is the decision maker. There is a difference between doing it yourself and pushing it to others in order to advance one's political objective. There is also the issue of the trade-off around sacrificing economic development for political/ideological objectives.

---
愛台灣愛到頭腦壞掉

對於企業赴大陸投資金額應否放寬淨值40%限制的問題,在「經續會」中引發了熱烈的討論;相關的討論其實還在持續之中。部分反對開放的人士喜歡提出一種說法,就是兩岸的投資有如零和賽局,資金流向大陸之後對於台灣本土的投資就會減少;為了「台灣優先」,當然要對大陸投資設限,以免資金流失而使得台灣投資減少、所得下降!

這些人士雖然關心台灣、值得肯定,但因為不了解投資決策的本質,以為兩岸投資有如水流之物理現象,而獲得了錯誤的結論;筆者已撰文加以解析(見本報八月八日《論壇》版)。然而,極少數學者近日接受媒體訪談,發揮了學術研究的精神,提出數據印證這種兩岸投資「排擠效果」的現象。其主要論證是說:台灣對中國的投資率,即投資中國佔我國國內生產毛額的比例,在90年代末為0.4%,到了2005年上升到1.7%;而台灣本身的投資率(國內投資佔國內生產毛額的比例)剛好反向變動,由23.2%降到了18.9%。這種「反向變動」現象印證兩岸投資的排擠效果!

政權移轉前無排擠
為了初步檢驗這些極少數學者的直觀,我們可以更明確地觀察兩岸投資是否真的出現了「反向變動」的關係。我們可以利用經濟部投資審議委員會發布的各年度對大陸投資核准金額,以及行政院主計處發布的台灣固定投資數據,來簡單計算對大陸投資率和國內固定投資率兩者之間的「相關係數」。該係數若為零,表示兩者之間不存在著任何關聯性,若達到一表示具有100%的相關性;而正、負符號則表示這種相關性是正向或負向的。學術上將其視為一種簡單的測試,若要更嚴謹的檢測則還要進行迴歸分析或各種因果檢測。在1991到2005年的數據中,剔除1993和1997兩個台商補辦申報的年度來避免干擾,我們擁有13個年度的數據。經簡單計算得其相關係數為-0.83,在統計學上屬於高度負相關,似乎印證了極少數學界人士的前述說法,也就是只要對大陸投資增加,對台灣本地投資就會減少!
但是,如果我們將年度資料以政權更替的2000年分成兩部分,就發現令人驚異的結果─1991到1999年間兩變數的相關係數為-0.02,也就是趨近於零,完全沒有關係;而2000到2005年間兩變數間的相關係數仍高達-0.71。換言之,在台灣政權移轉之前,兩岸投資的確就像筆者所言,不存在著排擠的現象;但是在政權移轉之後,就產生了相當明顯的「排擠現象」。

「本土派」誤開藥方
其實,這剛好印證了許多人的看法:是因為台灣在政權移轉之後,以停建核四等「不按牌理出牌」的作為打亂了經濟政策,使得台灣的投資環境變差,才使得投資下降。而對岸因為持續成長、基礎設施改善,投資環境和獲利機會誘人,才使得台商提高了投資。特別是在台灣近年來資金籌碼寬鬆、利率低迷的環境下,連國際間也經常到台灣來進行借貸活動,顯示只要想投資台灣,資金根本不是問題;說對大陸投資會「排擠」對台灣的投資,簡直是一種缺乏常識的說法!兩個變數之間的「反向關係」其實是個別投資環境變動下的「結果」,而不是它們之間有什麼相互影響的「因果」。「本土派」人士有一顆「溫暖的心」,可惜缺乏一顆「冷靜的腦」,會因誤診病因而開錯藥方,反而讓台灣經濟更加沉淪!

作者為台灣大學國家發展研究所副教授,美國約翰霍浦金斯大學經濟學博士

杜震華

Categories:

Thursday, August 10, 2006

Video map: Yakko's world!



Pretty great song, but the names are not all for "nations" and the data and maps are quite old. (It was probably produced in the early 1990s, soon after Germany was united in Oct 1990. "soon" because you still see the USSR map. However, the author probably failed to notice that Yemens were united in May 1990) So these notes are needed if you are teaching the kids
  • Carribean is a sea
  • Puerto Rico, Guam are US territories; Tibet, HK, Taiwan are parts of China (HK probably was still a British colony at the time it was produced, Taiwan is officially a province of the Republic of China)
  • San Juan is a city (capital of Puerto Rico)
  • Czech and Slovakia split
  • Middle East is not Europe (except if you buy a round-the-world ticket with the oneworld alliance), Scotland and England are not nations, UK is, Greenland is part of Denmark
  • Instead of Yemens, there is only one Yemen now
  • Kampuchea calls itself Cambodia again now
  • Asia is a continent
  • New Guinea has a full name, PNG
  • Sumatra is an island of Indonesia
  • Borneo hosts 3 countries, Malaysia, Brunei and Indonesia
  • Algier is a city, capital of Algeria in the previous line
  • Dahomey is the same as Benin in the previous line (name changed in 1975, before Cambodia was called Kampuchea)
  • Zaire is now another Democratic Republic of Congo (But there is still a smaller Congo to its west - with a capital called Brazzaville, opposite to the other capital Kinshasa across the Congo river.
  • I have no idea what Mahore is
  • Cayman is a British Colony, so is Bermuda
  • Abu Dhabi is an emirate within UAE
  • We all know what happened to Yugoslavia now. There was a lesser Yugoslavia even after the Bosnia and Kosovo wars. But Montenegro declared independence, Serbia followed suit as there was no point in a Yugoslavia with only Serbia itself. So long to the imperialist winners of WWI
  • Crete maybe a nation in 2500 years ago, it is just an island of Greece
  • Transylvania is part of Romania (home of vampire)
  • Palestine, unfortunately, is not a fully independent nation yet
  • Finally, don't be offended if your nation has not been included
  • There are also a number of irregularities in the map. e.g. Bhutan and Nepal were not shown. But I will leave this to our readers to explore

Despite all these faults, still an impressive task in puting them into an intersting song.

If you like it, there is also a flag version.


...and the solar system, american state capitals.
Categories:

Video: the grandfather of 4GW

Nothing illustrates the comcept of guerilla warfare better than the "Tunnel Warfare". It is a "People's War", the guerillas swim in the people, with their full support. It also illustrate the concept of how to achieve local and temporal advantage by manipulating the environment to your advantage.

This teaser is from the Chinese movie "Tunnel Warfare" made in 1960s. Yes, the original classification of this movie is "educational", i.e. for teaching purpose in military academies. It was then used to teach the general people how to conduct guerilla warfare if China is invaded (guerilla warfare is in essence "People's War", so it is meaningless if it was taught to the army but not he public). The movie was so well made, with a very good plot as the backbone (apparently based on the trure story about the people in a small village in Hebei, North China called Ranzhuang and Jiaohuzhuang against the Japanese occupation around early 1940s), that it is now still widely remembered and regarded as a classic of the time.



Here is the lyric of the theme song
  • 地道战嘿地道战,埋伏下神兵千百万,嘿埋伏下神兵千百万,千里大平原展开了游击战,村与村户与户地道连成片,侵略者他敢来,打得他魂飞胆也颤,侵略者他敢来,打得他人仰马也翻,全民皆兵,全民参战,把侵略者彻底消灭完。
  • 庄稼汉嘿庄稼汉,武装起来千千万,嘿武装起来千千万,一手拿锄头,一手拿枪杆,英勇顽强神出鬼没展开了地道战,侵略者,他敢来,地上地下一齐打侵略者他敢来,四面八方齐开战,全民皆兵,全民参战,把侵略者彻底消灭完。全民皆兵,全民参战,把侵略者彻底消灭完。
  • The last lines said, "Everybody is a soldier, everybody participate in the war, until the invaders are totally annihilated." Of course, the prerequisite for such People's War is that everybody in the "People" is with you. You need "help" from the invaders to achieve this.
  • The Mao quote on the screenshot said, "Revolutionary war is a war by the mass, only by mobilizing the mass can a war be executed, only by relying on the mass can we proceed to war..."
I blogged about People's War in ("source" of) 4GW before. I hope this sheds some light on the current events in Lebanon.

Related:
以军遭遇地道战 真主党藏兵于民开展人民战争 (I think the reference on Tunnel is exaggerated, but People's War it is.

---
Appendix: tactics of tunnel warfare
Screenshot from the movie: illustration of how to construct tunnel (that could defeat smoke, water, and defensible with primitive weapon such as a lance)...

...and how to launch attack using the tunnel infrastructure.

Categories:

Tuesday, August 8, 2006

Recommended reading list

As an experiment, I will put a few items of my most recent readings on the side-bar. It would include MSM, blog, video and other links. I will keep them for a few days (depending on how fast I update it, i.e. how busy I am).

I will lift the position of this post when there is update on the side bar in the beginning few weeks. Please let me know your feedback. e.g.
1) It is useless
2) It sucks
3) I don't care what you read
4) What topic will you prefer
5) Which recent recommendation is uninteresting (either because it is trite or everyone who reads this blog probably has already see it
6) Too many/frequent
7) Too few/infrequent
8) Any other comment and recommendation

In protest to the blatantly uncritical and brainwashing American reporting who has treated us like idiots, and particularly these few weeks, my first list will be from the honorable British people.

Map: Beirut levelled

Beirut on July 31st, after Israel bombed (vis Terrorism News)
The location is about 3.5km NE of Beirut Airport.


You can zoom in for the pre-bombing satellite image with Google map location at 33.853N, 35.509E.


Zoomed in the affected quarter,

This is probably where the Hezbollah headquarter building was located. But it is fair to say that
  1. Hezbollah is not stupid enough to store weapon at its headquarter building in Beirut
  2. Much more than that single building was levelled.


Update: wiki has the hi-resolution picture of the damage (not globalscape picture is rotated by 90 degrees. N is to the left hand side)

Categories:

Sunday, August 6, 2006

Definition of Terrorism: Israel is "only" half as bad as Al Qaeda?

The definition of terrorism is killing innocent civilian without targeting military target. There is no ambiguity in the case of Munich 1972, many of IRA activities, Bali/Madrid bombing, ETIM bombing of Chinese cities. All victims are civilians in these cases.

But things are not always black and white, as Israel and Hezbollah are accusing each other of terrorism in the recent conflict. Both side also claimed their striking of civilian targets are part of their act of war. Israel claimed the civilians are sheltering the Hezbollah militants. Hezbollah claimed since all Israeli need to serve in the army, their rockets are attacking legitimate enemy soldiers. Israel said it has reason to believe the targets are related to the rocket attacks but occasionally missed; Hezbollah said it is targetting military targets but its weapons are less accurate than Israel's.

There is no end to this argument. Even Al Qaeda can claim its attack on the Pentagon is an act of war, not terrorism, as the victims of UA175 were collateral. So I decided to calculate the collateral damage quantitatively, by computing the Terrorism Ratio (T.R.), which I define as #collateral/#enemy combatant. Here is the result I got (using the wiki data as of today - Aug 6),

Killed Total (casualty+capture)
Enemy Collateral T.R. Enemy Collateral T.R.
Israel 62 706 11.4 416 4,182 10.1
Hz 53
Amal 8
PFLP 1
Total (Israel claim) 400
Captured 16
Leb min/max 508 3,400
828
Neutral soldier 34 73
UN 4 3
Hezbollah 58 38 0.7 249 1,331 5.3
wounded 189 incl shock
captured 2
Al Qaeda: 911 125 2,851 22.8
WTC 2,605
AA11 88
UA175 59
Pentagon 125
AA77 59
UA93 40
Al Qaeda: Pentagon 125 59 0.5
Axis: WWII (M) 17 33 1.9
Allies: WWII (M) 8 4 0.5
US: Gulf War (k) 63 200 3.2
low estimate 25 100 4.0
high estimate 100 300 3.0

Al Qaeda's TR in 9-11 is 22.8. WTC alone is a full terrorism attack by any definition. But if you look at the Pentagon attack alone, the TR is only 0.5. However, one could argue even inside the Pentagon, there may be civilians who were innocent to this "war", such as secretaries and janitors. But then Al Qaeda can argue that they are no different from army chefs and engineers. I think I will just use 22.8 as a reference. a TR of 22.8 is way too high for any reasonable war, as we can compare it with figures from the WWII and the Gulf War.

Israel has a TR of 11.4 in its assault in Israel. It is half as bad as Al Qaeda!

Hezbollah's number is surprising low, at only 0.5. But wait a minute, this is not fair for Israel, because invader usually causes more civilian damage, as we can see in the TR number of the 2 sides in WWII (Axis invasion lasted a lot longer than Allies invasion, though the Axis did killed innocents on purpose). But even if you take this into account and multiple Hezbollah's number by a factor of 4 or 6, it is still no comparison to Israel's atrocity.

Wait another minute, the TR in discussion is calculated using the number of dead. If we use the total casuaty number (include enemy captured and wounded soldier and civilians), Israel's TR is 10.1 and Hezbollah's 5.3. The TR's are both higher than the TR of any other war (0.5-4).

I think Al Qaeda's act in 9-11 was definitely terrorism. I think Hezbollah was also guilty of terrorism, although most of what it has done was normal guerilla warfare until the rocket race. Israel's TR number in this conflict is sandwiched between Hezbollah's and Al Qaeda's. Israel is either extremely inefficient at achieving its goal (if such thing exists at all), or it purposedly planned to "punish" the Lebanese civilian by creating terror. So, is Israel guilty of terrorism?

---
Related: INTERVIEW WITH ISRAELI AUTHOR MEIR SHALEV
  • At the beginning of the war you could see from the declarations of various Lebanese leaders that even they were quite satisfied that Israel took care of the Hezbollah. But we went into Lebanon like angry bulls into the arena, attacking anything that moved.
  • Olmert should have defined the objectives of the war from the beginning. But all he said was: "We will be victorious" without defining what victory means...What does [the destruction of the Hezbollah] mean? Is it getting all of them to crawl on their hands and knees and hand over their weapons?
  • We lost, when Olmert said, we will win. Despite that, we will win at the end, because the Israeli society is smarter than its political leaders.
---
Update (Aug 14 ceasefire #, no fundamental change in the terror ratios)

Killed
Total (casualty+capture)

Enemy Collateral T.R.
Enemy Collateral T.R.
Israel 127 908 7.1
498 4,611 9.3
Hz 65





Amal 8





PFLP 1





Total (Israel claim) 180


530

Captured



21

Leb min/max
727


3,600


1,009




Neutral soldier
36


100
UN
4


3








Hezbollah 114 52 0.5
518 150 0.3
wounded



402 1200 lightly
captured



2


Categories: