The Econometric SocietyEconometrica: Apr 1968, Volume 36, Issue 2
A Note on the Differentiability of Consumer Demand Functions
https://doi.org/0012-9682(196804)36:2<415:ANOTDO>2.0.CO;2-X
p.
415-418
Donald W. Katzner
An example of a twice, continuously, differentiable utility function whose generated demand functions are not differentiable everywhere is given, along with necessary and sufficient conditions for such differentiability.Log In To View Full Content