Dickens, Richard; Fry, Vanessa; Pashardes, Panos - In: Economic Journal 103 (1993) 417, pp. 359-68
This paper focuses on the estimation and testing of equivalence scales in the context of a demand system with nonline ar logarithmic expenditure effects in its budget-share equations. The authors show that such nonlinearity enables one to identify the scal es without demographic separability...