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		| David  Kelsey and Wei  Pang | 
	
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		| ''How productive is optimism? the Impact of ambiguity on the "big push"'' | 
	
		| ( 2010, Vol. 30 No.1 ) | 
	
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		| The paper finds that sufficient ambiguity leads to the uniqueness of equilibrium in macroeconomic coordination games. The results have a Keynesian flavour: sufficient optimism gives rise to a Pareto-optimal equilibrium; and sufficient pessimism results in a Pareto-inferior
equilibrium. This analysis is applied to a "Big Push" model from the economic growth literature. | 
	
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		| Keywords: Ambiguity,  Strategic Complementary,  Coordination Games,  Optimism,  "Big Push". | 
	
		| JEL: D8 - Information, Knowledge, and Uncertainty: General H3 - Fiscal Policies and Behavior of Economic Agents: General
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		| | Manuscript Received : Feb 05 2010 |  | Manuscript Accepted : Mar 25 2010 | 
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