In a recent article, Ederington (1979) examined the hedging performance of financial futures markets using a portfolio … model derived from the hedging theories of Stein (1961) and Johnson (1960). His article concluded that GNMA futures were … misspecification of the model and to test whether the hedging effectiveness of the T-Bill futures market has changed after three years …

.e., the hedging effectiveness of currency futures markets. In particular, the present work demonstrates that the futures … markets for British pounds, German marks, and Japanese Yen have been as effective as hedging devices as have some of the long …