1. Nonparametric tests of efficiency of portfolio investment

   • Jati K. Sengupta

   Articles Pages: 1 - 15

2. Statistical models of German stock returns

   • Vedat Akgiray
   • G. Geoffrey Booth
   • Otto Loistl

   Articles Pages: 17 - 33

3. The implications of technical change in a Marxian framework

   • Erik Dietzenbacher

   Articles Pages: 35 - 46

4. On the non-existence of a marginal cost pricing equilibrium and the Ioffe normal cone

   • Tadashi Hamano

   Miscellanea Pages: 47 - 53

5. Exchange rate models and parameter variation: The case of the Dollar-Mark exchange rate

   • Christian C. P. Wolff

   Miscellanea Pages: 55 - 62

6. Book reviews

   • R. H. Frank
   • Y. Ishii
   • P. Schönfeld

   BookReview Pages: 63 - 86