Recently Chambers and Fare (1998) [Chambers, R.G., Fare, R., 1998. Translat
ion homotheticity. Economic Theory 11, 629-641] generalized the Shephard ty
pe of "multiplicative" homotheticity into an "additive" type, which they te
rmed translation homotheticity. This type of homotheticity has parallel exp
ansion paths and its cost function is additively separable. In this letter
a nonparametric test for translation homotheticity is developed. (C) 2001 E
lsevier Science B.V. All rights reserved.