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		| Zuzana  Janko and Janusz  Kokoszewski | 
	
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		| ''An Intervention Time Series Analysis: Specialization and Competitiveness in Sports”'' | 
	
		| ( 2013, Vol. 33 No.3 ) | 
	
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		| We utilize a time-series intervention model in the spirit of Enders (1995) and ask to what extent – if any – institutional specialization improves competitiveness in sports.   Specifically, we analyze the impact on the competitiveness of Polish swimmers internationally due to the establishment of high-school sport centers in late 1980's specializing in swimming. This allows us to measure the quantitative and qualitative effects of a standardized system on competitiveness.   Our analysis shows that the public policy that allowed for institutional specialization had a significant short-term as well as a long-term effect.  In particular, we find that implementing the policy had a long run effect of five additional Polish swimmers in the Top 25 international ranking. | 
	
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		| Keywords: Policy Intervention Analysis,  Institutional Specialization,  Competitiveness. | 
	
		| JEL: C1 - Econometric and Statistical Methods: General Z0 - Other Special Topics: General
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		| | Manuscript Received : Sep 11 2012 |  | Manuscript Accepted : Aug 29 2013 | 
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