A Tax Package to Reduce the Marginal Rate of Income Tax and the Wage Demands of Trade Unions*

To reduce the level of tax evasion, a shift of taxation away from income tax and towards a consumption tax has been proposed in Australia. This paper shows that for such a shift to maintain revenue but not induce trade unions to raise their wage demands, it is necessary that the income tax threshold be increased. Numerical examples of desirable tax packages are given.     

Canadian academic accountants' productivity: A survey of 10 refereed publications, 1976–1989*

Abstract. In this paper we examine the productivity of Canadian academic accountants through analyses of articles published in 10 refereed journals between 1976 and 1989, inclusive. We report the numbers of articles by Canadian institutional affiliation cross-tabulated by subject area, whether theoretical or empirical, and by the journal in which articles appeared. Summary statistics are computed to identify the gross and per capita productivity of the institutions represented and to identify the 10 most productive researchers in this period as well as in the subperiods 1976–82 and 1983–89.     

Nonnormalities and Tests of Asset Pricing Theories

The robustness of the multivariate test of Gibbons, Ross, and Shanken (1986) to nonnormalities in the residual covariance matrix is examined. After considering the relative performance of various tests of normality, simulation techniques are used to determine the effects of nonnormalities on the multivariate test. It is found that, where the sample nonnormalities are severe, the size and/or power of the test can be seriously misstated. However, it is also shown that these extreme sample values may overestimate the population parameters. Hence, we conclude that the multivariate test is reasonably robust with respect to typical levels of nonnormality.