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A-109
The following appeared in a letter to the editor of the Maple City newspaper.
"Twenty years ago Pine City established strict laws designed to limit the number of new buildings that could be constructed in the city. Since that time the average housing prices in Pine City have increased considerably. Chestnut City, which is about the same size as Pine City, has over the past twenty years experienced an increase in average housing prices similar to Pine City, but Chestnut City never established any laws that limit new building construction. So it is clear that laws limiting new construction have no effect on average housing prices. So if Maple City were to establish strict laws that limit new building construction, these laws will have no effect on average housing prices."
翻译:
20年前Pine City建立了严格的法令来限制该市未来建造的高层建筑的数量。从那以后Pine City的平均房价显著上涨。和Pine City差不多同等规模的Chestnut City在过去20年中经历了和Pine City类似的房价上涨,但Chestnut City从未建立任何限制高层建筑的法令。因此限制建造高层建筑的法令对于平均房价没有影响。所以如果Maple City建立限制新的高层建筑的法令的话,这种法令不会影响平均房价。
提纲:
a. 20年前的数据不能说明以后的情况,毕竟时代不同了,everything is changing。
b. 并未阐述地价提高的根本原因,inflation&devaluation of currency, 地产市场, 规定与地价之间的关系不令人信服
c. P有限制地价提高,C无限制地价同样提升,类比并不能说明法规是否有效,两城市存在种种差别,同理M也应该具体情况具体分析
In this advice letter, The author asserts that Pine City and Chesnut City experienced a similar increasing in average housing prices in past 20 years. Pine City printed a number restrict law of new buildings, while Chesnut City did not. Thus the author concludes that laws to limit new constructions have no effect on average housing prices, and they are absolutely meaningless for Maple City to establish. The conclusion sounds logical and reasonable at first glance, but if we examine it more carefully, we will find out several critical flaws as follows:
Firstly, it is ill-convinced and dubious to infer the effectiveness in the future by historical statistics in past 20 years. As an old saying goes: "Time passes and the situation has changed”, the market circumstance may be totally different to which in 20 years before, so an effective law before is probably weakened by the time going.
Secondly, the relation between restrict law and price increase is not well supported and cogently proved. The author should point out all the causal reasons of the rising of average housing prices, in order to roll out the influence of restrict law. To be frank, assuming some detailed information about how and in what quantity the law increase the average housing value is presented by anyone, the author's conclusion would be undermined.
Finally, although Pine City and Chesnut City are similar in size as the author referred, the situation of Pine City and Chesnut City may be various in other aspects, such as the geographic condition and the consumers' purchasing desire. In another words, if Pine City might lay on a plain, and there is no limit for new building, land agents are likely to construct excessive buildings and reversely to sold in lower prices; meanwhile, if Chesnut City lay on a mountainous region, there is not enough valid space to build so many buildings. Therefore, the analogy between the two cities can not lend credible to evaluation of the restrict law.
In sum up, it is presumptuous to judge the limit law in Maple City, just by a superficial analogy of two other cities, ignoring their dissimilarities.
[ 本帖最后由 staralways 于 2006-2-25 23:53 编辑 ] |
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