Dynamic Stock Markets with Multiple Assets: An Experimental Analysis

We study the performance of the rational expectations hypothesis in multiperiod experimental markets with multiple assets. We find that the markets are generally inefficient from the point of view of full information aggregation. However, arbitrage relationships hold, and it is not possible to detect the informational inefficiency by using some standard tests of market efficiency. These findings suggest that the lack of arbitrage opportunities and the failure of common tests to reject inefficiency are not sufficient to conclude that a market is informationally efficient.     

浅论区域信用

广义的信用是一种建立在信任基础上的能力.区域信用是维系区域一切社会、经济、文化等活动正常进行的纽带,具体表现为区域的行政的、经济的、社会的各部门或行业的信用,包括政府（官员）信用、商业信用、金融信用、商品信用、科学技术信用等.没有良好的区域信用,就没有良好的区域形象;建立健康、和谐、不断发展的社会,必须构建良性的区域信用体系.     

基层政制与乡村社会结构的错离：以近代华北区制的变动为中心

清末以来，在地方自治的背景下，华北各县境内形成了介于县制与村制之间的区制，成为近代华北乡村政治体制变动的一大特征。到1930年代中期，华北各县的区制随着地方自治的终结而废止。区制变动的深层动因不能仅在地方自治的困境中寻得解释，它实际上是外来制度安排无法楔入乡村社会的结果。因此，乡村控制的强制性制度安排，导致的后果是区制的教度调整与变动，而没有形成稳定的乡村治理的区位结构。乡村治理的区位，应植根于中国乡村特殊的社会环境，契舍于乡村原有的社会、经济、政治乃至文化区位，而非仅仅是一纸政令下的外来强制性制度安排。与乡村社会结构的疏离与错位，是造成民国时期区制不断调整的内在深层动因。     

BETAS AND DEBT MANAGEMENT WITHIN THE UK TAX ENVIRONMENT

Tax complexities relating to corporate tax losses, induced by debt finance, and to the differential tax treatment of equity and sterling debt, are introduced into corporate valuation. The after personal tax value of the geared firm can be less than that of the equivalent ungeared firm. Also, debt-induced tax losses can create negative betas. These fiscal effects are incorporated into degearing formulae under active and passive debt management policies.     

浅析产业内贸易理论

随着各国经济发展和人均收入水平的不断提高,产业内贸易的比重越来越大。以“国际产品异质性”、“需求偏好相似”、“规模经济优势”三个原理为支柱的产业内贸易理论对此进行了有效的解释,并以一个全新的视角对国际经贸理论进行了发展和完善。掌握这一理论无疑对我国产业结构的调整和贸易政策的制定都有着积极的借鉴意义。