中美农业信贷体系的差异与启示

从农业信贷体系的管理制度与政策、农业信贷机构体系和信贷机构经营环境三方面比较了中美农业信贷体系的主要差异,指出中国农业信贷体系支农不足的原因主要在于制度建设滞后、机构体系不完善、信贷抵押与配套服务不足,进而提出完善中国农业信贷体系的五点政策建议。     

Analyzing the Market for Imported Cheese in Mexico

Rapid growth of U.S. dairy exports to Mexico began even before the 1994 North American Free Trade Agreement (NAFTA) and has been fueled by rapid population increases coupled with an expanding Mexican economy. This study uses a nonlinear approximate almost ideal demand system (NLAIDS) to estimate own and cross-price elasticities in the Mexican cheese import market to better understand market behavior and to assess the comparative position of the UnitedStates relative to other cheese market participants. Results of this study imply that attributes of cheese play a strong role in the composition of Mexican cheese import market.     

The evolution of income inequality in the European Union during the period 1993–1996

The objective of this work is to analyse the income inequality in the 15 EU countries during the convergence process to the Monetary Union, using the information contained in the European Community Household Panel, corresponding to the four first waves. Using the inverse second order stochastic dominance concept, an ordering of these countries has been carried out. Furthermore, this ranking allows one to determine if the differences among EU country members have increased or decreased during this particular period. Whether the inequality of income has diminished within and between countries over time was studied. Gini's generalized family indices proposed by Donaldson and Weymark (Journal of Economic Theory 22: 67–86, 1980 and 29: 353–8, 1983) and Yitzhaki (International Economic Review 24: 617–28, 1983) have been used. This allows one to test the sensitivity of the results obtained to different degrees of inequality aversion and to different equivalence scales, taking into account household sizes.     

Mail survey abroad with an alternative web survey

The large decline in cooperation in surveys experienced in the first decade of the twenty first century has placed representative surveys in a veritable quagmire, although numerous researchers have shown that the decline in the total nonresponse has been much higher in administered surveys (face-to-face and telephone) than in self-administered (mail and web surveys). The move from the “traditional” mail survey to the internet survey has brought important changes, but, at the same time, new challenges have arisen related to the lower coverage and the reduced visibility, the need for certain skills to fill out a questionnaire, changes in response rates, etc. This is a self-administered survey that informs the addressees by mail that they have been selected to participate in a research survey to which they can respond either by using the paper questionnaire (in the letter there is a prepaid envelope), by means of a web questionnaire (accessing a link and using a password), or by telephone (the respondent provided a contact time telephone number via a prepaid envelope or by calling an answering machine). The respondents themselves, therefore, choose the mode of response. An analysis of the responses achieved by each modality shows that the majority of the questionnaires were received by ordinary mail (83.6 %), 359 by internet (14.4 %), and 51 were answered by telephone (2.0 %).     

Near Observational Equivalence and Fractionally Integrated Processes

The aim of this paper is to study the presence of nearly observationally equivalence problems in fractionally integrated processes. In order to illustrate our results, by means of a Monte Carlo study, we analyze the finite sample behaviour of the usual Durbin-Watson statistic in a regression between two independent nonstationary fractionally integrated processes with MA (1) innovations.     

Stability of Risk Premia in the Italian Stock Market

In this work, we estimate the arbitrage pricing theory (APT) on the Italian Stock Market using the reduced-rank regression technique recently propossed by Bekker et al. (1996). Due to its computational simplicity, this technique allows extensive empirical analysis of the properties of the estimator employed. In this work, we carry out an initial exploration of the cross-sectional stability of the risk premia estimates in relation to the stocks' sample composition. We show that, by choosing an appropriately diversified sample, some acceptable degree of stability may be obtained. We also investigate, using the bootstrap method, the small sample properties of the estimator. (J.E.L.: G11, G12).     

The power of the oil countries

What will be the consequences of the oil producing countries’ strong market position for these states themselves as well as for the industrial nations relying on the inflow of oil?     

重庆第三产业发展水平差异分析

选取重庆市40个区县第三产业发展评价数据,运用多元统计因子分析方法,对重庆市各区县第三产业发展水平进行了定量分析。分析表明重庆市各区县第三产业发展水平不仅在三大经济圈之间存在差异,而且在三大经济圈内部也存在较大的差异,重庆市各区县第三产业发展不平衡影响了全市整体第三产业发展水平。     

江苏省集中式饮用水水源保护区划分研究

此文对江苏省在实际工作中如何运用<饮用水水源保护区划分技术规范>(HJ/T338-2007),结合江苏省现行保护区划分的相关文件和规定,具体划分河流型、湖库型和地下水饮用水水源保护区,明确水功能区断面水量、水质控制,从而实施流域、区域及重点保护范围的统筹考虑进行了研究.