... years of data on interest rates and finds that the short rates from the USA and the UK are characterized by stationarity after the tests for unit root have accounted for structural breaks. Volatility tests reveal for the whole and sub‐sample periods that the long rates are excessively smooth. © MCB UP...

... are provided. © MCB UP Limited 1998 Demand Imports Integration Modelling Tests Merchandise imports have played a major role in the economic development of sub‐Saharan African countries. In these resource‐poor economies the capacity to produce capital and consumer goods is limited and so...

... the relationship, but consensus has not yet been reached, and empirical tests are rare. Presents the empirical results of applying Granger’s (1969) and Sims’ (1972) causality tests using time series data on technical and allocative efficiencies of random samples of Indian farmers. These causality tests...