In this paper we compare different models of vertical contracting between manufacturers and retailers in the supermarket industry. Demand estimates are used to compute price-cost margins for retailers and manufacturers under different supply models when wholesale prices are not observed. The...

The main purpose of this paper is to determine whether inflation in South Africa has been caused by excessive monetary expansion over the period 1966-1997, or whether the money supply has merely been passive in the inflationary process. The analysis first draws on Friedman and Schwartz's (1982)...

We propose non-nested hypotheses tests for conditional moment restriction models based on the method of generalized empirical likelihood (GEL). By utilizing the implied GEL probabilities from a sequence of unconditional moment restrictions that contains equivalent information of the conditional...

We consider an alternative use of simulation in the context of using the Likelihood-Ratio statistic to test non-nested models. To date simulation has been used to estimate the Kullback-Leibler measure of closeness between two densities, which in turn 'mean adjusts' the Likelihood-Ratio...

We consider an alternative use of simulation in the context of using the Likelihood-Ratio statistic to test non-nested models. To date simulation has been used to estimate the Kullback-Leibler measure of closeness between two densities, which in turn ‘mean adjusts’ the Likelihood-Ratio...

We propose non-nested tests for competing conditional moment resctriction models using a method of empirical likelihood. Our tests are based on the method of conditional empirical likelihood developed by Kitamura, Tripathi and Ahn (2004) and Zhang and Gijbels (2003). By using the conditional...

The main purpose of this paper is to determine whether inflation in South Africa has been caused by excessive monetary expansion over the period 1966-1997, or whether the money supply has merely been passive in the inflationary process. The analysis first draws on Friedman and Schwartz's (1982)...

The main purpose of this paper is to determine whether inflation in South Africa has been caused by excessive monetary expansion over the period 1966-1997, or whether the money supply has merely been passive in the inflationary process. The analysis first draws on Friedman and Schwartz's (1982)...