This paper compares the performance of eight frequently used flexible forms that are either (1) locally flexible, (2) 'effectively globally regular', or (3) asymptotically globally flexible. Results show that the functions with global properties generally perform better, particularly those...

In this paper we consider and illustrate a solution to the inter-related problems of monetary aggregation and estimation of money demand. The problem with the definition of money is that the relative prices of the monetary components fluctuate over time, rendering simple-sum aggregates...