Published online by Cambridge University Press: 03 March 2011
In this comment we identify a lacuna in a proof in thepaper by M. Caner published in 1997 inEconometric Theory concerning theweak limit behavior of various expressions involvingheavy-tailed multivariate vectors and theconvergence of stochastic integrals. In a laterpaper (Caner, 1998) the results for these limitrelations are used to formulate tests forcointegration with infinite variance errors.
The authors are grateful to the three anonymousreferees and the editor for fruitful discussionsthat led to a substantial improvement of thiscomment.