Enchuan Shao

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Understanding the Cash Demand Puzzle

Staff Working Paper 2014-22 Janet Hua Jiang, Enchuan Shao
We develop a model to explain a puzzling trend in cash demand in recent years: the value of bank notes in circulation as a percentage of GDP has remained stable despite decreasing cash usage at points of sale owing to competition from alternative means of payment such as credit cards.

The Threat of Counterfeiting in Competitive Search Equilibrium

Staff Working Paper 2013-22 Enchuan Shao
Recent studies in monetary theory show that if buyers can use lotteries to signal the quality of bank notes, counterfeiting does not occur in a pooling equilibrium. In this paper, I investigate the robustness of this non-existence result by considering an alternative trading mechanism.
Content Type(s): Staff Research, Staff Working Papers Topic(s): Bank notes JEL Code(s): D, D8, D82, D83, E, E4, E42

On the Welfare Effects of Credit Arrangements

Staff Working Paper 2012-43 Jonathan Chiu, Mei Dong, Enchuan Shao
This paper studies the welfare effects of different credit arrangements and how these effects depend on the trading mechanism and inflation. In a competitive market, a deviation from the Friedman rule is always sub-optimal. Moreover, credit arrangements can be welfare-reducing, because increased consumption by credit users will drive up the price level so that money users have to reduce consumption when facing a binding liquidity restraint.
November 17, 2011

Modelling the Counterfeiting of Bank Notes: A Literature Review

The objective of this article is to improve our understanding of counterfeiting and its policy implications by reviewing research in this area. There has been almost no empirical work on counterfeiting because of the limited availability of counterfeiting data and related statistics. The authors therefore focus on theoretical studies that directly model the behaviour of the relevant economic agents. They first establish some stylized facts about counterfeiting to provide a general understanding of the problem. They then briefly review several models of counterfeiting and summarize their relevant insights, focusing on the implications of the findings for the incentive to counterfeit, social welfare and anti-counterfeiting policies. The authors find that the policy implications of these studies support the Bank’s comprehensive anti-counterfeiting strategy.

Fixed-Term and Permanent Employment Contracts: Theory and Evidence

Staff Working Paper 2011-21 Shutao Cao, Enchuan Shao, Pedro Silos
This paper constructs a theory of the coexistence of fixed-term and permanent employment contracts in an environment with ex-ante identical workers and employers. Workers under fixed-term contracts can be dismissed at no cost while permanent employees enjoy labor protection.
Content Type(s): Staff Research, Staff Working Papers Topic(s): Labour markets, Potential output, Productivity JEL Code(s): H, H2, H29, J, J2, J23, J3, J38

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