化解金融危机全球要共同稳定货币

2008年的全球金融危机标志着一个时代的终结,引起了人们的广泛思索。无论发达国家还是发展中国家,都在努力寻求化解危机的办法。浮动汇率制度解决不了金融稳定问题,或许多元化的货币政策是解决问题的方法之一。     

An enduring need: multilateralism in the twenty-first century

That the global economy has been hugely successful over thepast 50 years is unquestionable. A major underpinning of thatsuccess has been the open multilateral system, which has enabledthe emergence of a truly international financial system, reciprocalreduction of trade barriers, and the emergence of many previouslypoor countries into the status of ‘emerging markets’or even ‘developed’. The open multilateral system,however, is increasingly under-appreciated and taken for granted.Preferential trading arrangements have proliferated, and withthem the possibility of discriminatory arrangements for capitalflows. The absence of an international regime for capital flowspermits this development and poses a threat to the system, asdo all of the issues on which countries' governments assert‘their’ interests, and ignore their interests inthe overall health of the system. It is to be hoped that thebenefits of multilateralism are more greatly appreciated, andthat the current trend toward increasing regionalism and departuresfrom the post-war system is reversed.     

FTPL-Perspective on Tradable Deficit Permits in the EMU

The Growth and Stability Pact restricts member states in their fiscal policy but also causes inflexibility in the pursuit of wide-ranging economic and social reforms. Tradable deficit permits allow more flexibility for individual member states and provide a stick for those who exceed the deficit limit but also a carrot to those who stay below it. But does the trade in deficit permits affect the monetary objectives of the European Central Bank (ECB)? We argue that from a perspective of fiscal theory of the price level, trade in deficit permits can lead to higher inflation depending on the growth rate and the debt/GDP ratio of the member states.     

浅析人民币汇率变动原因及其影响

汇率作为国际金融的重要指标，一直以来都是实现和衡量一国经济内外均衡的工具。本文从宏观和微观两个方面分析了人民币汇率变动对中国经济的影响，并提出相应措施以保持人民币汇率的稳定，促进我国经济内外均衡发展。     

Purchasing Power Parity under Regime Shifts: An Application to Asian Countries*

This paper re‐examines the long‐run purchasing power parity (PPP) relationship for nine Asian countries relative to the USA and Japan during a period containing significant structural breaks. The relevance of considering structural breaks in PPP tests is demonstrated by utilizing the Johansen et al. (2000) procedure that allows for up to two pre‐determined structural breaks. Using conventional tests without considering breaks, one is able to reject the null of no cointegration for only four countries. The Johansen et al. procedure clearly demonstrates the importance of allowing for structural breaks and provides strong support for long‐run PPP for all the countries, regardless of the base country, except in the case of the Philippines vis‐à‐vis Japan. The Hansen–Johansen parameter constancy test indicates stability for all the countries except the Philippines relative to the USA and Malaysia relative to Japan.     

Why evolution does not always lead to an optimal signaling system

This paper gives a complete characterization of neutrally stable strategies for sender–receiver games in the style of Lewis, or Nowak and Krakauer [Lewis, D., 1969. Convention: A Philosophical Study. Harvard Univ. Press, Cambridge, MA; Nowak, M., Krakauer, D., 1999. The evolution of language. Proc. Nat. Acad. Sci. USA 96, 8028–8033]. Due to the dynamic implications of neutral stability, the replicator dynamics of this model does not necessarily lead to the rise of an optimal signaling system, where every state of the world is bijectively linked to one signal and vice versa, but it can be trapped in suboptimum situations where two (or more) signals are used for the same event, or two (or more) events are associated with one and the same signal.     

欧元区金融一体化发展与稳定性安排的困境

金融一体化是欧洲一体化建设的重要内容,是当代欧洲金融业发展中的一个突出特征。本文考察欧洲金融业一体化的状态与效应,以及伴随着一体化进程逐步形成的金融稳定性框架。本文的分析显示,实行单一货币制以来,欧洲金融一体化不断深入,推动金融业市场的集中度与竞争性和效率提高,但是在当前金融危机的冲击下,缺乏联合统一行动机制的欧洲金融稳定性安排暴露出了明显的内在缺陷,需要有深度的改革。     

非线性延迟系统Runge-Kutta方法的稳定性探讨

针对时间依赖型的非线性多变延迟系统,采用变步长的Runge-Kutta方法求解,证明了匹配一定插值方法的代数稳定的Runge-Kutta方法是VR稳定的。     

Price Stability in Economies with Habit Persistence

This paper shows that the divine‐coincidence does not hold in a sticky price model with external habit if a time‐varying tax rate on labor income is not implemented to fully eliminate the time‐varying distortions associated with external habit and monopoly power in goods market. The required labor income tax rate is inversely related to the risk‐free real interest rate and the markup in the goods market, but it is proportional to the degree of external habit. Under this circumstance, the optimal monetary policy commands a countercyclical interest rate, having a perfect negative correlation with tax rate in the sticky price model with external habit. If a time‐invariant tax is the only fiscal instrument, then the degree of external habit entails a gap between the private marginal rate of substitution between consumption and labor and the social marginal rate of substitution, generating an endogenous trade‐off between the stabilization of welfare‐relevant output gap and inflation. Under this circumstance, price stability is not the optimal policy. The monetary policy authority should optimally try to undo the time‐varying distortions associated with external habit and monopoly power in goods market by deviating from price stability.     

对我国金融机构资产负债表、杠杆率与金融稳定的思考

金融机构的资金来源方式、资金运用方式会影响金融机构本身和金融体系的杠杆率与稳定性。若金融机构或金融体系主要通过金融市场融资,资金运用主要集中于金融资产,并且通过金融资产进行再融资的规模不受限制,那么面对宏观经济或金融市场的冲击,这种类型的金融机构或金融体系的杠杆率会快速下降,在其资产和负债的期限错配较严重时,资金链条就会断裂,引发系统性金融风险。通过分析不同的资金来源和运用方式对金融机构杠杆率产生的影响,并结合历史上数次金融危机的教训,针对杠杆率快速下降时如何维护金融稳定提出了政策建议。