This paper discusses model-based inference in an autoregressive model for fractional processes which allows the process to be fractional of order d or d-b. Fractional differencing involves infinitely many past values and because we are interested in nonstationary processes we model the data...

A simple Post Keynesian growth model is developed, in which financial variables are explicitly taken into account. Different possible accumulation regimes are derived with respect to changes of these variables. Several variants of an investment function are estimated econometrically. The...