Okhrin, Ostap; Okhrin, Yarema; Schmid, Wolfgang - 2009
Department of Economics, University of Bern, Schanzeneckstr. 1, CH-3012 Bern, Switzerland
Wolfgang Schmid
Department of …-Universit˜at zu Berlin is gratefully acknowledged.
1Corresponding author. Department of Economics, University of Bern, Schanzeneckstr …