Jensen, B.S.

function demand utility price parameter restriction elasticitie utility function model houthakker expenditure parameter restrictions consumer system commodity substitution proof econometrica equation theory addilog value jensen somermeyer price elasticities slutsky speci preference utility functions budget engel economic allen property marshallian analysis income vector university equilibrium hicksian c / pi regularity regularity properties elasticity fi rst exible box –cox transformation cdes demand system aggregation hanoch cambridge university press curve expression fication murty engel curves fl exibility p -21 quasiconvexity vol 2. north-holland c /p j erasmus university rotterdam hicksian demands hi quasiconvex -21 quasi-convex diewert utility function v derivative allen elasticities matrix fl exible proposition 1 speci fication hertel appendix b equilibrium dynamics addilog system c /pi