在中国开展森林认证工作势在必行

鉴于当前我国林业在国民经济建设和社会可持续发展中的重要地位以及中国森林认证工作与世界的差距,从森林认证的起源、内涵、国内外发展趋势的对比、社会责任、国际竞争力等多角度阐明在我国积极开展森林认证工作的必要性。     

食品安全监管长效机制建构研究

近年来食品安全问题时有发生,食品安全已经成为关系国计民生的一个极为突出的社会问题。因此,加强食品安全监管的研究,建立和完善我国食品安全监督管理体系,实施有效的食品安全应对措施,具有极其重要的意义。本文分析了我国食品安全监管存在的问题,并在借鉴国际经验的基础上,提出几点政策建议：健全食品安全检验检测体系;加强食品安全教育体系建设;充分发挥消费者组织、行业协会的监督作用等。     

林业碳汇研究进展简述

简述林业碳汇的概念及价值,从碳汇计量方法、林业碳汇项目、碳交易等方面对国内外研究现状进行介绍,对未来发展提出了个人建议。     

A stochastic cost efficiency analysis of international tourist hotels in Taiwan

The one-stage stochastic frontier approach (SFA) is used in this study to simultaneously estimate cost efficiency scores and factors of cost inefficiency for 66 international tourist hotels in Taiwan during 1997–2006. An SFA model with three outputs and three inputs is defined. The three outputs are room revenue, food and beverage revenue, and other operation revenue while the three inputs are price of labor, price of other operation, and price of food and beverage. This model also takes into account five environmental variables, including dummy variable of the hotels located in non-metropolitan area, dummy variable of chain hotels, the number of tourist guides, the minimum distance from each hotel to Taoyuan international airport and the minimum distance from each hotel to Kaohsiung international airport. Empirical results show that international tourist hotels in Taiwan are on average operating at 91.15% cost efficiency. All nominal variables are transformed into real variables in 1997 prices by GDP deflators. Chain systems, tourist guides, and international transportation can significantly improve the cost efficiency of international tourist hotels in Taiwan.     

The motivations and expectations of international volunteer tourists: A case study of “Chinese Village Traditions”

International volunteer tourists devote not only financial support but also time and effort to conservation, preservation, or humanitarian projects outside their original countries. The purpose of this paper is to report the results of a qualitative study on the motivations of ten international volunteer tourists who joined the “Chinese Village Traditions” expedition of the Earthwatch Institute in the summer of 2008. The main research question was, “Why do people join international volunteer tourism trips?” Eleven themes dealing with motivations emerged and were categorized into three groups: personal, interpersonal, and other. Four personal factors were measured: authentic experience, interest in travel, challenge/stimulation, and other interest. Four interpersonal factors were also considered: desire to help, interaction with locals/cultures, encouraged by others, and enhancing relationships. Other factors included unique style of the trip, time/money, and organization goal. The findings of this study echo previous literature reviews in different settings.     

Openness to trade as a determinant of the macroeconomic elasticity of substitution

Several theoretical and empirical studies on economic growth consider the macroeconomic elasticity of substitution between capital and labor as a measure of economic flexibility that depends on technological as well as institutional aspects. One institutional aspect of economic flexibility is openness to trade. I examine in a Heckscher–Ohlin model with two large countries trading intermediate goods how openness affects the elasticity of substitution. If the technology has a constant elasticity of substitution in a closed economy, opening up to trade raises the elasticity of substitution only in the country that accumulates capital at a faster rate.     

Domestic financial market frictions,unrestricted international capital flows,and crises in small open economies

Summary. We present an example of a small open economy where small increases in the world interest rate may induce a sharp decline in output and a precipitous depreciation of the exchange rate. Due to a costly state verification problem in domestic credit markets, combined with unrestricted international capital flows, our economy generates two long-run equilibria, one with low GDP and a relatively depreciated real exchange rate (RER), and one with high GDP and a relatively appreciated RER. The first is always a saddle, while the second may be a sink or a source, depending on the level of the world interest rate. A crisis is identified with the economy switching from an equilibrium path approaching the high-output steady state to the saddlepath approaching the low-output steady state. In Mexicos recent history, periods of growth associated with appreciation of the RER have alternated with periods of sharp contraction and depreciation of the RER. Our economy displays such behavior in response to changes in the world interest rate.Received: 9 April 2002, Revised: 20 March 2003JEL Classification Numbers: E5, F4.G. Antinolfi, E. Huybens: We thank Steve Fazzari, Tim Kehoe, Todd Keister, Manuel Santos, Karl Shell and especially Bruce Smith for very helpful discussions. Jaime Calleja Alderete, Eduardo Camero Godínez, and Juan Vargas Hernández provided excellent research assistance. All remaining errors are ours. Huybens was an assistant professor in the Centro de Investigación Económica, ITAM, at the time this article was written, and part of this work was completed while Antinolfi was a visiting scholar at the Federal Reserve Bank of St. Louis. The views expressed herein are those of the authors, and do not reflect those of the World Bank or the Federal Reserve Bank of St. Louis. Correspondence to: G. Antinolfi     

国际购买力平价和简化净出口函数:中国实证

文章从国际交换价值的角度研究了一价定律的内涵,提出了国际购买力平价理论,并且证明了国际购买力平价是严格意义上的均衡汇率。2009年人民币贸易品购买力平价为6.70元人民币/美元,而国际购买力为5.49元人民币/美元,后者可作为确定人民币汇率处于均衡水平的参考。文章还简化了净出口函数,得出如下主要结论:(1)近年我国的贸易顺差大幅增长,主要是因为价格贸易条件恶化,其次是因为J曲线效应;(2)当前的首要任务是改善我国的价格贸易条件以提高国际购买力平价,而不是调整人民币汇率。     

我国医药流通领域中电子商务交易平台的应用分析

中国的医药企业在加入WTO后面临更为激烈的市场竞争环境,迫切需要运用电子商务来推动企业的发展。中国医药企业在应对国际化的市场竞争中,应把自己的传统优势同电子商务商业模式结合起来,尽快建立和发展医药行业的第三方电子商务交易平台,建立起医药企业成熟的电子商务应用体系。