Background Risk and the Performance of Insurance Markets under Adverse Selection

Background risk can influence the performance of insurance markets that must deal with adverse selection when applicants are risk vulnerable, since they are more averse to bearing the insurable risk as a result of their exposures to background risk. We show that background risk always results in a lower deductible for the incentive constrained contract, and that a broader range of markets attains the stable sequential equilibrium cross-subsidized pair of separating contracts. We conclude that background risk always improves the performance of markets for coverage against (insurable) foreground risks that must deal with adverse selection. We also find, however, that these improvements are never sufficient to offset the cost to insureds of bearing the background risk.     

国际贸易发票货币的选择——兼论人民币国际化

一国货币作为国际贸易发票货币取决于货币汇率的波动性、该国在占据的出口市场份额以及该国出口产品的差异性程度。随着人民币汇率形成机制更加灵活和弹性化及在国际贸易中采用本币计价以回避汇率风险,人民币成为国际贸易发票货币有期可待。     

通货膨胀对产出缺口反应程度的不确定性分析

本文试图通过分别探讨国有单位和其他单位两个部门中影响工资对劳动力供求缺口做出调整的因素来研究工资对劳动力供求缺口反应程度的规律性趋势,进而推断通货膨胀对产出缺口反应程度的规律性趋势。研究表明,国有单位的工资调整将受到计划和市场因素共同影响,并且计划性因素要占到主导作用从而使得该部门的工资调整趋于粘性,同时其他单位的工资调整将受到工人与厂商对经济周期长度和波动幅度预期的影响,这两方面预期因素再通过生产函数与工资成本加成定价原则影响到菲利普斯曲线的中通胀对产出缺口的反应程度。在这种情况下,中央银行的政策操作应谨慎行事。