We estimate a simultaneous discrete choice model for welfare participation and labour supply of two-adult households in Australia using the Income and Housing Costs Survey of 1994/1995. Welfare participation is assumed to have a positive indirect effect (through income) and a negative direct...

This paper outlines two potential approaches to incorporating business taxation and allowances into a model of a firm to determine the effect of tax policy changes on the firm's behaviour. Following Auerbach, King and Benge, we first develop a model in which the firm maximises the value of its...

This is a companion paper to Impact Preliminary Working Paper No OP-73 in which Rimmer and Powell report on a new implicitly directly additive demand system (AIDADS) which (in Cooper and McLaren's 1992b terminology) is effectively globally regular. In OP-73 AIDADS is fitted to a six-commodity...

Tax evasion has been studied intensively in the context of developed countries in which the institutional environment assumes a pervasive respect for the rule of law. In many developing nations such an assumption is not warranted. The objective of this paper is to develop a model of tax evasion...

This document compares several methods of computing price and quantity indices, with special reference to the small-change computations used by GEMPACK. Accompanying worked examples, using Excel and GEMPACK, can be downloaded from the <a href= "../archivep.htm">CoPS archive</a>.

Empirical work on intra-industry trade (IIT) is almost 30 years old. From the earliest analyses of IIT, the phenomenon has been associated with Regional Trading Agreements (RTAs). An important motivation for this research is associated with the issue of adjustment costs; if most of the growth in...

Recently some researchers have suggested that economies of scale and imperfect competition play a major role in determining the effects of exogenous policy shocks. Thus they have emphasised the need to incorporate industrial organisation features into computable general equilibrium (CGE) models....

This empirical study of Armington elasticities between Australian domestically produced commodities and imported commodities of the same name follows directly from Alaouze, Marsden and Zeitsch [AMZ] (1977) (see Impact Project Working Paper O-11, available from this web site). In the present...

To make CGE models realistic, we sometimes need to include inequality constraints (eg, import quotas) or non-differentiable functions (eg, income tax schedules). Both situations may be described using complementarity conditions, which state that either an equation is true or its complementary...

Many studies have found that the economic benefits from investment in urban infrastructure are substantial. In Australia, much of the responsibility for the provision of urban infrastructure rests with regional governments. Throughout the1990's many of these governments embarked on a program of...