This paper duscusses tha author's wok on measuring and modelling the New Zealand underground economy, 1968-1994. Particular attention is paid to the relationship between this activity and taxation policy. An optimal level for the effective tax rate is reported, in terms of maximizing the impact...

This paper considers the "learning curve" relationship between the aggregate tax rate and the relative size of the hidden economy in New Zealand. Some simple non-linear models are estimated so that the effects of changes in the effective tax rate on the underground economy can be simulated. We...

In this paper I support using econometric techniques to measure the size of the hidden (underground) economy, because such information is important for the construction of certain economic models, and for empirical policy analysis. Generally, detailed information on the output of the hidden...

In this paper we outline the results of some extensive econometric modelling that has been undertaken to establish a time-series of the size of the New Zealand Hidden Economy from 1968 to 1994. The derivation of these data has facilitated a good deal of associated research, and here we draw on...

We use nonparametric regression analysis to investigate the relationship between the effective tax rate and the relative size of the underground economy, using New Zealand data. The theoretical underpinnings of such a relationship are established by extending some of the predictions of the...

This paper develops and estimates a structural, latent variable, model for the hidden economy in New Zealand, and a separate currency-demand model. The estimated latent variable model is used to generate an historical time-series index of hidden economic activity, which is calibrated via the...

This paper develops a structural, latent variable, model for the hidden economy in New Zealand, and a separate currency-demand model. The latent variable model is used to generate an historical time-series index of hidden economic activity, which is calibrated via the information from the...

We use nonparametric regression analysis to investigate the relationship between the effective tax rate and the relative size of the underground economy, using New Zealand data. The theoretical underpinnings of such a relationship are established by extending some of the predictions of the...

Using new time-series data for the size of the Canadian underground economy, we examine the relationship between unreported and measured GDP in that country. Granger causality tests are conducted, with a proper allowance for the non-stationarity of the data. We find that there is clear evidence...

Recently there has been a resurgence of interest internationally in measuring the size of the underground economies. This has led to new approaches to this problem, and a more rigorous treatment of the associated time-series issues. In this paper we compare our recent underground economy results...