碳贸易价格风险变动趋势与我国CDM发展策略

本文构建并拟合了包含分布转换的Markov-GARCH模型,计算了基于该模型的风险价值(VaR),对国际碳贸易市场价格风险变动趋势进行了分析。研究结果表明:碳贸易市场价格在均值、方差、峰度、波动聚集性以及分布形式方面都具有机制转换的特性;欧盟推出的EU ETS改革措施将促使未来碳贸易市场价格波动风险进一步降低。我国应当适时提高CDM合同最低限价;减少向CDM合同国际买方支付的风险溢价;暂停上马HFC-23和N2O分解类项目;加快国内碳贸易和碳金融市场的发展,争夺国际碳贸易市场定价权。     

The time-series properties of the risk premium in the Yen/Dollar exchange market

In this paper a VAR model is employed to construct a measure of the conditional expectations of the future yen/dollar spot rate. This measure allows us to examine the dynamics of an ex-ante time-series for the risk premium in the market. The VAR model produces ‘better’ forecasts than the survey responses for turbulent periods such as 1981–1982 and 1984–1985. The VAR-generated expectations are then used to construct a risk premium time-series. This risk premium series seems to be more reliable than the ones obtained using either survey data on expectations of the future spot exchange rate or the ex-post realized spot exchange rate. Tests on the risk premium series suggest that a risk premium was present, but that it was virtually constant throughout the sample. The conditional variance of the risk premium changed over time, but its unconditional distribution seemed stable across subsamples. Despite these features, the volatility of the series was substantial and varied considerably throughout the sample.     

Remittances and the Dutch disease: evidence from Georgia

In this article, using the VECM model we attempt to empirically examine the Dutch disease effect of remittances in Georgia. The analyses are based on quarterly data covering the years 2000–2016. It is found that an inflow of remittances leads to an appreciation of the real effective exchange rate in the long run, whereas it has the reverse effect in the short run.     

DO DEPOSITORS RESPOND RATIONALLY TO BANK RISKS? EVIDENCE FROM JAPANESE BANKS DURING CRISES

This paper empirically examines depositors' ability to distinguish healthy banks from problematic banks, a necessary condition for depositors to impose discipline on banking institutions. We analyzed a large panel of 784 deposit‐taking institutions in Japan during the period from the 1992 financial year to the 2002 financial year. Our estimates indicate that depositors rightly appreciated the difference between healthy banks and risky banks, and that depositors of larger institutions are more sensitive to the bank risks than those of smaller institutions. We further argue that the estimated risk sensitivities of depositors are large enough to discipline the deposit‐taking institutions.     

A Secure and Fair Protocol that Addresses Weaknesses of the Nash Bargaining Solution in Nonlinear Negotiation

Negotiation with multiple interdependent issues is an important problem since much of real-world negotiation falls into this category. This paper examines the problem that, in such domains, agent utility functions are nonlinear, and thereby can create nonconvex Pareto frontiers. This in turn implies that the Nash Bargaining Solution, which has been viewed as the gold standard for identifying a unique optimal negotiation outcome, does not serve that role in nonlinear domains. In nonlinear domains, unlike linear ones, there can be multiple Nash Bargaining Solutions, and all can be sub-optimal with respect to social welfare and fairness. In this paper, we propose a novel negotiation protocol called SFMP (the Secure and Fair Mediator Protocol) that addresses this challenge, enabling secure multilateral negotiations with fair and pareto-optimal outcomes in nonlinear domains. The protocol works by (1) using nonlinear optimization, combined with a Multi-Party protocol, to find the Pareto front without revealing agent’s private utility information, and (2) selecting the agreement from the Pareto set that maximizes a fair division criterion we call approximated fairness. We demonstrate that SFMP is able to find agreements that maximize fairness and social welfare in nonlinear domains, and out-performs (in terms of outcomes and scalability) previously developed nonlinear negotiation protocols.