This paper uses the Fourier flexible form to jointly approximate utility and service flows from durable and nondurable goods. In contrast, parametric functions are usually not flexible enough to accurately approximate nonseparability and often give inconsistent results. This paper calls these...

The authors extend W. A. Barnett and A. Jonas's (1983) asymptotically ideal model (AIM) to model for the possibility that the data were generated by a dynamic process. Prediction errors for dynamic and static AIM models are compared for various simulated datasets. Monetary data are also used to...

This article develops a new method to evaluate revealed preference separability conditions. In contrast to previous studies, our results generally find weak separability, even when datasets have some measurement error. In addition, revealed preference and weak separability appear robust to...

I derive the dynamic full Laurent model to estimate economic models that assume a dynamic process. The application in this paper is to use the dynamic full Laurent to estimate a system of dynamic asset demand equations. The main results are that the dynamic full Laurent rejects its static...

This paper uses the dynamic Laurent demand system to jointly estimate the service flows from durable and nondurable goods. The parameter estimates are used to obtain the Morishima elasticity of substitution between goods for the United States from 1960:1 to 1991:4. One of the significant results...

The paper uses an asymptotically ideal model to estimate substitution elasticities between financial assets held by the U.K. personal sector. An important innovation is to extend the range of assets to include "risky" assets as well as capital certain monetary assets. The most significant result...