Journal of Evolutionary Economics

, Volume 28, Issue 2, pp 305–332 | Cite as

Minimum investment requirement, financial market imperfection and self-fulfilling belief

  • Tomoo KikuchiEmail author
  • George Vachadze
Regular Article


We develop a model in which a strategic complementarity in saving decisions arises due to a minimum investment requirement and financial market imperfection. We explore the role of self-fulling beliefs in determining the long run dynamics. The model exhibits a wide range of dynamic phenomena such as a poverty trap, a big push and a sunspot equilibrium, depending on the level of financial market imperfection. They account for excessive volatility and a sudden change in the saving rate and its macroeconomic consequences without any shocks to fundamentals.


Financial market imperfection Strategic complementarity Saving rate Self-fulfilling belief Sunspot multiple equilibria 

JEL Classification

D91 E21 E32 E44 O11 O16 



We thank Costas Azariadis, Yannis Ioannides, Tatsushi Oka, Kwanho Shin, Enrico Spolaore, Yong Wang for their helpful suggestions and comments as well as Wang Zi for excellent research assistance. The financial support of Singapore Ministry of Education, Academic Research Fund Tier 1 R-122-000-112-112, City University of New York, PSC-CUNY Research Award 60030-40 41, and College of Staten Island Provost’s Research Scholarship Award is gratefully acknowledged.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Centre on Asia and Globalisation, Lee Kuan Yew School of Public PolicyNational University of SingaporeSingaporeSingapore
  2. 2.School of Business, College of Staten Island Graduate CenterCity University of New YorkNew YorkUSA

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