Friday, June 13, 2014

The Science of Demand (43) - Unofficial Translation of Steven Cheung's 经济解释 - 科学说需求


As earlier said, since we have not discussed production, market structure, etc., the demonstration here of the explanatory power of the law of demand is only precursory instead of flexing all muscles. Yet my November 26, 2003 article, “Quota: No Lessons Drawn from Previous Examples?”, is a very good demonstration of the might of the law of demand. Readers do not have to wait till Volume II to comprehend. The concept of monopoly rent, a wonderful plot that I introduced in that article’s latter part, was also comprehensible. For readers to realize the mightiness of the law of demand, a translation of that article is set out below:

With the signing of the agreement of the World Trade Organization (WTO) two years ago, the quota system for textile and garment imports into the United States has been progressively banned, with quotas for some of them already abolished. Due to the abolition of quotas, imports of three kinds of products into the U.S. rose sharply. This led to the U.S. deciding to re-introduce quotas early next year. China voiced its opposition, claiming the U.S. has violated the WTO agreement. The U.S. insisted there was no violation, erupting a dispute between the two countries. I have no idea which country is right, but whichever is right is not an issue to be explored here.

Often can we find analyses of economists on the effect of quota. They generally follow textbook approach, shifting a few curves to and fro, adding a few changes with reference to legislation, and then compile quantitative analyses using statistical tools like regression. Such analyses are not wrong, but since too much emphasis is put on mathematical equation and import/export figures, the most imperative implication of quota for manufactured goods is overlooked. In other words, the most imperative content is being disregarded. Let me elaborate.

In the 1970s, Hong Kong became the world’s largest exporting “country” of garments (textile products). Why? The reason was since the mid-1960s, the U.S. and other developed countries used quotas to restrain the import of textile products from Hong Kong!

I in those days was in the U.S. and saw that myself. In the 1960s, textile products from Hong Kong, of low quality and cheap prices, were only sold in basements of lower-class shopping outlets. So shady were they that they were displayed together with products of other developing countries. After the imposition of quota restriction, there was a dramatic rise in the quality of Hong Kong garments. Within just a few years, they rose through the ranks from basement to the floor selling top-quality products, with prices rising sharply as well. Many high-class U.S. brands lost grounds as a result or were eliminated. In fact, in the late 1970s, when well-off ladies from Hong Kong flew to the U.S. for shopping at posh shopping centers, the clothes they bought were all made in Hong Kong.

Is this at all surprising? Forty years ago, some states in the U.S. changed the levy of tobacco tax to a per-pack basis. Cigarettes were instantly made longer. And some years ago, the garbage collection agency appointed by a certain district council in Seattle went out of its mind to charge garbage fee on a per-bin basis. Garbage bins in that council were instantly made bigger and stuffed to their fullest possible. Parents asked their kids to jump on garbage to make additional room, resulting in garbage bins too heavy to be lifted!

Quota is valuable. One piece of garment requires one quota for export, so there is no reason why a manufacturer would not improve the quality of garment. This is similar to the U.S. apples and oranges which get imported into Hong Kong. Since the same freight applies irrespective of quality, exporters would definitely choose high-quality ones. Suppose I, without the knowledge of my wife, take a lady like a young Song Meiling out to the Amigo Restaurant for dinner, I would not be so stupid to ask the waiter for a burger.

Suffice it to explain is the same law of demand. The answer that Form 6 students in Hong Kong will be able to provide is, with the inclusion of freight charges, the prices of high-quality apples and lower-quality ones are both increased, but from the perspective of relative price, the price of high-quality apples has gone down. Prices in the law of demand are always relative. By the same token, improving the quality of garment raises its price, yet when the same value of a quota is added onto a piece of high-quality garment and a lower-quality one, the relative price of the high-quality one will go down, therefore the quality of exports shoots up.

Form 6 students who can provide this analysis would get full marks, while post-doctoral fellows would merely get 60, a bare pass, as it is only roughly correct. A more correct, or more thorough analysis, has to interpret “quantity” in a pretty complicated manner. My book, “The Science of Demand”, deals with this issue in Section 5 of Chapter VI.

With quantity restricted by quota, why, then, did Hong Kong become the world’s largest exporting “country” of textile garments? The answer is a combination of two reasons. First, higher quality escalates price, and export is calculated on price. Second, higher-quality garment, being more durable, indirectly reduces the export quantity of other countries.

Another issue arises. In those days, other Asian countries or regions all faced the same quota restrictions, why was it mainly Hong Kong that came out in front? The answer utilizes the same law of demand: only Hong Kong in the whole Asia allowed free-trading of quotas in the market. This freedom of transfer not only permitted quotas to fall into the most efficient or appropriate hands, but also allowed the value of quotas to heighten, which in turn enabled the relative price of Hong Kong’s high-quality garments to drop further. It is believed that there is also a quota-transfer market in the mainland for textile products, but since it is illegal, the market has invented certain transfer schemes to circumvent the rules. This results in increased transaction costs. However, it is generally observed that quota transfer is commonplace in the mainland, its impact on product quality, therefore, should be similar to that of Hong Kong in those days.

Any manufactured product can have different grades of quality. In free-trading international market, different regions will choose to produce goods of such quality level that suit their comparative cost advantage. Manufacturers which make the wrong choice will be eliminated by the market. It is not that Hong Kong manufacturers were unable to produce high-quality, high-grade garment before the introduction of quota, but that they believed, under free international competition, their cost would have been no match for developed countries had they invested in high-grade products.

The introduction of quota has altered the quality-grade rankings in free market. Why was it possible? Before the quota system, garment manufacturers in Hong Kong believed that the cost in producing high-grade garment was too high to succeed. Did such cost drop with the quota system? Certainly not. The answer was: the introduction of quota restricted competition among garment manufacturers, rendering each quota holder a certain degree of monopoly. The value of quota represented monopoly rent, and the existence of this rent allowed the quota holder to increase cost, thereby permitting a dramatic rise in garment quality. With competition among quota holders, equilibrium would be reached when, at each and every margin, the cost increase in improving quality equaled the quota rent. The dramatic increase in garment quality therefore can be viewed from two perspectives: first, the law of demand compels the choice of improving quality; second, quota rent makes room for increase in cost. This is economics.

So ill-advised is protectionism that it is hardly imaginable. In those days, the U.S. and other developed countries, in order to protect their own garment manufacturers, imposed quota restrictions on Hong Kong textile products that were lagging behind with poor quality. Given the protection of quota, Hong Kong manufacturers had on hand considerable quota rent that allowed them room to raise cost and improve product quality, resulting in the downfall of quota advocates. This is called lifting stone to stone one’s own feet.

In recent years, mainland China’s garment industry, joined by many Hong Kong manufacturers, has been producing goods of a wide range of qualities and grades, with no lack of top-grade products. Following China’s accession to the WTO and the abolition of quota, these garment manufacturers have been facing surging competition. Under such circumstances, with the return of quota system driving them to further excel, even the most glamorous suit may be produced. Innocent yet implicated, the famous brands in Europe will see disaster coming!


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