help help me 翻译成中文啦~~~急

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help help me 翻译成中文啦~~~急
The key identifying assumption of our analysis is that countries' geographic characteristics (their Pi's and Si's) are uncorrelated with the residuals in equations (1) and (3). Proximity and size are not affected by income or by other factors,such as government policies,that affect income. And as we observe in the introduction, it is difficult to think of important ways that proximity and size might affect income other than through their impact on how much a country's residents interact with foreigners and with one another.
Given the assumption that P and S are uncorrelated with E,data on Y,T,W,P and S would allow us to estimate equation (1) by instrumental variables: P and S are correlated with T and W [by (2) and (3)], and the uncorrelated with E (by our identifying assumption). Unfortunately, however, there are no data on within-country trade. Ideally,we would want data comparable to measures of international trade. That is,we would want a measure of the value of the exchange of all goods and services among individuals within a country, both across and within firms. This measure would probably be many times GDP for most countries. But no such measure exists.
1个回答 分类:英语 2014-10-31

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The key identifying assumption of our analysis is that countries' geographic characteristics (their Pi's and Si's) are uncorrelated with the residuals in equations (1) and (3).Proximity and size are not affected by income or by other factors,such as government policies,that affect income.And as we observe in the introduction,it is difficult to think of important ways that proximity and size might affect income other than through their impact on how much a country's residents interact with foreigners and with one another.
识别的关键假设我们的分析是,国家的地理特征(他们的皮和硅的)是不相关的残值在方程( 1 )和( 3 ) .接近和大小都不会影响收入或其他因素,如政府政策,影响收入.当我们观察在引进,这是很难想象的重要方式接近和规模可能会影响到收入以外的其他通过他们的影响有多少国家的居民与外国人和彼此.
Given the assumption that P and S are uncorrelated with E,data on Y,T,W,P and S would allow us to estimate equation (1) by instrumental variables:P and S are correlated with T and W [by (2) and (3)],and the uncorrelated with E (by our identifying assumption).Unfortunately,however,there are no data on within-country trade.Ideally,we would want data comparable to measures of international trade.That is,we would want a measure of the value of the exchange of all goods and services among individuals within a country,both across and within firms.This measure would probably be many times GDP for most countries.But no such measure exists.
鉴于假设P和S是无关与E ,数据Y染色体上,Ť宽,磷,硫,使我们能够估计方程( 1 )工具变量:P和S相关的T和W [由( 2 ) ( 3 ) ] ,并与E无关(我们确定假设) .然而不幸的是,没有任何数据,在国内贸易.理想的情况下,我们要的数据相比,国际贸易的措施.也就是说,我们要衡量的价值交换的所有商品和服务的个人在一个国家内,双方之间和企业内部.这项措施可能会多次国内生产总值的大多数国家.但是,没有这样的措施存在.
 
 
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