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		| Andreas  Chai and Alessio  Moneta | 
	
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		| ''Comparing shapes of engel curves'' | 
	
		| ( 2009, Vol. 29 No.2 ) | 
	
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		| We measure how different the shapes of Engel curves are across 59 commodity groups. The same analysis is carried out for their derivatives and variances. While Engel curves possess a relatively homogeneous shape, significantly more heterogeneity is present in derivatives and when particular sub-classes of income are considered. | 
	
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		| Keywords: Consumption,  Kernel smoothing,  Rank correlation,  Curve shape | 
	
		| JEL: D1 - Household Behavior: General C1 - Econometric and Statistical Methods: General
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		| | Manuscript Received : Feb 09 2009 |  | Manuscript Accepted : May 28 2009 | 
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