Michael P. Clements and Jeremy Smith, "A Monte Carlo Study of the Forecasting Performance of Empirical SETAR Models", Journal of Applied Econometrics, Vol. 14, No. 2, 1999, pp. 123-141. The two files krager.f and potter.f are fortran programmes which use the NAG library. The programmes will generate empirical SETAR models of exchange rates using the paper of Krager and Kugler (1993) (JIMF) and for US GNP using the paper of Potter (1995) (JAE). Having generated the artificial data as SETAR models, the programmes then estimates both AR and SETAR models. These two alternative models are then evaluated in terms of their forecasting performance. The methods of evaluating the forecasting is via FMSE comparison (and t-tests using the Diebold and Mariano (1995) (JBES) statistic) and by comparison of regime predictions. These files are zipped in the file cp-progs.zip. They are in DOS format, so Unix users should use the -a option when unzipping.