房地产市场的市场特征及货币调控政策的理论分析

通过区分房地产市场中消费者和投资者,建立购房信贷市场化和政府管理两类房贷市场模型,指出两者表现出共同的特征,即房地产市场消费者比例超过一定范围时,投资者会获得超额所得,且随着消费者比例增加,该超额所得会增加,而消费者没有任何超额所得。本文还用模型说明了货币或信贷调控政策对房地产市场作用是短期性的,不会起到长期稳定房价的作用,要长期稳定房价,就需要从制度上控制进入房地产市场的消费者的比例。     

TECHNOLOGICAL CHANGE,HUMAN CAPITAL STRUCTURE,AND MULTIPLE GROWTH PATHS*

This paper presents a theoretical model to analyze the effects of technology change on growth rates of income and human capital in the uncertain environments of technology. The uncertainty comes from two sources: the possibility of a technology advance and the characteristics of new technologies. We set up an overlapping generations model in which young agents invest in both width and depth of human capital in order to adopt new technologies. The model develops explicitly the micro‐mechanism of the role of human capital in adopting new technologies as well as that of the process of human capital production in the uncertain environments. In our model, a higher level of width of human capital relative to the level of depth leads one country to a higher growth path. We also show that an economy can have different growth paths depending on the initial structure of human capital and the uncertainty about the nature of new technologies. In particular, new technologies with more uncertain characteristics may adversely affect human capital accumulation and income growth, leading the economy to a low growth trap.     

Separation of Unit of Account from Medium of Exchange

The separation of a unit of account (UoA) from a medium of exchange (MoE) in the commodity–money system is investigated by considering explicitly a seller's choice of UoA in terms of either an MoE or a unit of metal weight. If the likelihood of debasement of an MoE and its rate are high enough, the price is posted in terms of a unit of metal weight rather than an MoE. Interestingly, this MoE–UoA separated equilibrium yields the flexible nominal price, whereas an MoE–UoA integrated equilibrium yields the sticky one. This implies the nominal price rigidity in the fiat‐money system where MoE and UoA are integrated.     

Real Exchange Rates and Fundamentals: A Cross‐Country Perspective

This paper employs newly constructed measures for productivity differentials, external imbalances, and commodity terms of trade to estimate a panel cointegrating relationship between real exchange rates and a set of fundamentals for a sample of 48 industrial countries and emerging markets. It finds evidence of a strong positive relation between the consumer price index‐based real exchange rate and commodity terms of trade. The estimated impact of productivity growth differentials between traded and nontraded goods, while statistically significant, is small. Increases in net foreign assets, government consumption, and trade restrictions tend to be associated with appreciating real exchange rates.     

Volatility in Wheat Spot and Futures Markets, 1950–1993: Government Farm Programs,Seasonality, and Causality

We explore how wheat spot and futures market volatility has been impacted by government farm programs during the 1950–1993 period. We find that changing volatility in both markets is highly associated with changing farm programs. The mandatory allotment programs of the 1950s and early 1960s (1/3/50–4/10/64) were associated with low volatility, while the voluntary programs initiated in the mid 1960s seem to have induced high volatility (4/11/64–12/22/85). Both market-driven loan rates and conservation reserve programs appear to have helped volatility revert to lower levels since the mid 1980s (12/23/85–12/30/93). We also examine seasonality and causality in conjunction with the farm programs.     

Do Opinions on Financial Misstatement Firms Affect Analysts’ Reputation with Investors? Evidence from Reputational Spillovers

We examine whether opinions on firms subsequently revealed to have misstated earnings affect analysts’ reputation with investors. We find that positive opinions by bullish analysts hurt their reputation, leading investors to react less to their research on non‐misstatement firms after the misstatement revelation (i.e., negative spillovers). We also find that bearish analysts issuing more negative opinions gain reputation and experience positive spillovers. Finally, for analysts who dropped coverage of the misstatement firm before the misstatement revelation, we find no spillovers, which suggests that analysts experience limited reputational gains when they did not issue a public negative opinion.     

CONTRACT ENFORCEMENT AND INTERNATIONAL TRADE

This paper derives estimating equations from a model where individuals consume two classes of goods, and the degree of contract enforcement affects the transaction cost of trade in the two classes of goods differentially. Empirically, using Rauch's classification, internationally traded goods are classified into differentiated goods and those possessing a reference price, with the presumption that contract enforcement issues are more important for the former. It is verified that the measures of contract enforcement affect the volume of trade in both types of goods, but the impact is larger for differentiated goods.     

中国非营利组织的供应链整合营销传播策略模式研究

把整合营销传播这一理论工具引入非营利组织的供应链管理中,尝试为中国非营利组织建立适合其运行的供应链整合营销传播战略模式。