Immigration and Unemployment*

The wisdom of maintaining high levels of immigration into Australia has been questioned, particularly on the grounds that migration contributes to aggregate unemployment. This paper uses both statistical causality techniques and conventional structural models to investigate the relationship between immigration and unemployment in the post-war period in Australia. The tests find no evidence of any association from migration to unemployment, though there is strong evidence of a significant effect of Australian unemployment on migration. The results indicate that immigration policy should not be dictated by unfounded fears of immigration causing unemployment, at least over the range of previous Australian experience.     

Equilibrium Unemployment Dynamics

The global dynamics of Pissarides' (1990) equilibrium model of aggregate unemployment are studied in the case of increasing returns to scale in production and constant returns to scale in the matching process. An equilibrium is a dynamic path for the aggregate number of matches generated by best-response search and recruiting investment decisions under rational expectations. Necessary and sufficient conditions for multiple equilibria, including limit cycles, are derived, and illustrative examples are computed. The application of saddle-loop bifurcation theory is a novel feature of the analysis. Since one equilibrium Pareto dominates all the others, a macroeconomic coordination problem exists.     

Immigration, Unemployment and Pensions

This paper examines the impact of immigration on a host country with welfare state arrangements that support both the unemployed and the elderly. It is shown that low‐skilled immigration increases the unemployment rate. Furthermore, it harms the low‐skilled native population and benefits the high‐skilled natives and pensioners. Nevertheless, as under competitive labor markets, immigration generates an unambiguous gain for the native population as a whole. However, in contrast to the findings under full employment, this gain can be dampened by an expansion of the pension system.     

International Trade and the Equilibrium Rate of Unemployment in a Heckscher-Ohlin World Economy

This paper develops a (stylized Asia-America) Heckscher-Ohlin world economy in which the equilibrium rate of unemployment is endogenous. We examine the impact of various economic shocks on unemployment in the global economy. Harrod-neutral or Hicks-neutral technical progress across all industries in Asia leads to a terms of trade improvement for America but raises America's unemployment rate. Introducing a third country such as the block of former socialist economies results in higher unemployment for both Asia and America. Protection in America lowers American equilibrium unemployment but raises Asia's unemployment. [E24]     

Statistical Equilibrium Wealth Distributions in an Exchange Economy with Stochastic Preferences

We describe an exchange market consisting of many agents with stochastic preferences for two goods. When individuals are indifferent between goods, statistical mechanics predicts that goods and wealth will have steady-state gamma distributions. Simulation studies show that gamma distributions arise for a broader class of preference distributions. We demonstrate this mathematically in the limit of large numbers of individual agents. These studies illustrate the potential power of a statistical mechanical approach to stochastic models in economics and suggest that gamma distributions will describe steady-state wealths for a class of stochastic models with periodic redistribution of conserved quantities. Journal of Economic Literature Classification Numbers: C15, C62, C73, D3, D5.     

Inflation and Unemployment in General Equilibrium*

When labor is indivisible, there exist efficient outcomes with some agents randomly unemployed, as in Rogerson (1988) . We integrate this idea into the modern theory of monetary exchange, where some trade occurs in centralized markets and some in decentralized markets, as in Lagos and Wright (2005) . This delivers a general equilibrium model of unemployment and money, with explicit microeconomic foundations. We show that the implied relation between inflation and unemployment can be positive or negative, depending on simple preference conditions. Our Phillips curve provides a long‐run, exploitable, trade‐off for monetary policy; it turns out, however, that the optimal policy is the Friedman rule.     

Equilibrium Unemployment Rate and Customs Union

This paper utilizes the macroeconomics concept of the equilibrium rate of unemployment for theorems on free trade and the formation of customs union. The notion of an equilibrium rate of unemployment appears in the literature on labour, macroeconomics, business cycles and trade theory. Such an equilibrium rate can be derived in a number of ways, for example, by introducing labor–leisure choice in the utility functions of the workers; a labor turnover model and/or by introducing shirking. We extend the two sector-two factor Heckscher–Ohlin–Samuelson model for a small open economy by relaxing the assumption of inelastic labor supply. Specifically, we consider the classical labor supply function obtained from the representative consumer's utility maximisation problem. This consideration allows for the existence of unemployment and we analyse the effects trade policies have on the equilibrium unemployment rate. Given the movement towards free trade (either via the implementation of GATT and/or formation of customs union) it is important to examine its implications for the equilibrium rate of unemployment.     

The Optimal Environmental Tax and Urban Unemployment in an Open Economy

This paper investigates how a rise in the urban pollution tax rate may affect urban unemployment and welfare in a small open Harris–Todaro (HT) model with intersectoral capital mobility. First, by formulating urban pollution as a dirty input in manufacturing, we find that an increase in the urban pollution tax rate can increase the level of urban unemployment even with intersectoral capital mobility. That is, the optimistic finding by Rapanos (2007 ) that environmental protection policy reduces urban unemployment in the long run does not always hold. Second, the (sub)optimal pollution tax rate under urban unemployment is higher than the Pigouvian tax rate (the marginal damage of pollution). This result opposes those of Beladi and Chao (2006 ) for a closed HT economy and that of Tsakiris et al. (2008 ) for an open HT economy with sector‐specific capital.     

Do Conditional Benefits Reduce Equilibrium Unemployment?

Although unconditional unemployment benefits destroy jobs in competitive and noncompetitive labor markets, conditional benefits can spur job growth in noncompetitive labor markets. Unconditional benefits reduce the penalty of shirking and misconduct, while conditional benefits increase this penalty. This is shown for the efficiency‐wage, no‐shirking model of the labor market developed by Shapiro and Stiglitz (1984) . Switching from unconditional to conditional benefits lowers unemployment. Tough eligibility requirements are thus important components of the welfare state. However, if conditional benefits are financed by a payroll tax, conditional benefits exert upward wage pressure so that unemployment falls by less and may even increase.     

Pareto-improving Untied Aid with Environmental Externalities

This paper shows that even untied aid is Pareto-improving if and only if the marginal propensity to consume the polluting good in the donor country is sufficiently larger than in the recipient country.     

The Effects of Immigration on Regional Unemployment Rates in The Netherlands

The impact of immigration on the change in the unemployment rate in the Netherlands is analyzed using panel data from 26 labor market regions from 1996 through 2003. This study measures immigration through the year-to-year change in the foreign population, paying particular attention to immigrants of non-Western origin. Other variables controlling the composition of the local labor market include: occupation shares, the fractions of workers employed in high- and low-skilled jobs, the fractions of female workers, part-time employees, labor force participants over the age of 55, educational attainment shares, and population density. The ordinary least squares (OLS) results indicate a change in the foreign population in the labor force led to a statistically significant increase in the upward volatility of Dutch unemployment rates while the change in the non-Western share had no significant effect.

Equilibrium Unemployment in Australia: Concepts and Measurement*

This paper reviews some concepts of equilibrium unemployment and outlines the fundamental difficulties facing any attempt to produce estimates of the equilibrium rate of unemployment. It develops simple quasi-reduced form models of aggregate unemployment based on rival non market-clearing and market-clearing theories. These equations form the basis of an empirical model of aggregate unemployment in Australia since 1969. The empirical evidence suggests that most of the observed increase in unemployment can be attributed to cyclical rather than structural-frictional factors. However, stylized explanations of cyclical unemployment exclusively along the lines of Keynesian, Classical or equilibrium search theory are found inadequate.     

Capital Expansion, Endogenous Growth and Equilibrium Unemployment

A model is developed, which captures the interactions of unemployment and economic growth in general equilibrium. The economy evolves along a correct-expectations equilibrium path exhibiting endogenous job rationing, and productivity growth is driven by installation of new capital. Under the maintained hypothesis that the elasticity of substitution between capital and labour is less than unity, unemployment benefits are shown to shift up the whole path of equilibrium unemployment, leaving the economy with a higher natural rate of unemployment and lowering the long-run growth rate permanently. Investment tax credits financed by lump sum taxes on total income are capable of lowering the natural rate and raising the economy's growth rate.     

Immigration and Unemployment: New evidence from Australia and New Zealand

This study uses a new Granger no-causality testing procedure developed by Toda &Yamamoto (1995) to contribute to the debate on immigration and unemployment in Australia and New Zealand. It investigates a possible causal linkage between these variables in a six-variable vector autoregression (VAR) model. The research finds no Granger causality between immigration and unemployment. Instead, it finds evidence of Granger causality running from industrial structural changes, measured by the Stoikov and HDB indices, to unemployment, and from several other economic variables to unemployment.     

Equilibrium Growth in a Small Economy Facing an Imperfect World Capital Market

A growth model of a developing economy facing an upward-sloping curve of debt is analyzed. Equilibrium is characterized by transitional dynamics in which consumption, capital, and debt converge to a common growth rate. The adjustment is through the debt-capital ratio, which drives the borrowing rate to a level at which growth rates are equalized. The economy is subject to two externalities: a production externality associated with government expenditure, and a financial externality associated with the upward-sloping supply of debt. The tax structure that enables the decentalized economy to attain the first-best equilibrium is characterized.     

Trade Unions in an Open Economy: A General Equilibrium Analysis*

This paper derives a general equilibrium demand-for-labour schedule within the Heckscher-Ohlin-Samuelson model of a large open economy, and then introduces an economy-wide labour union that maximizes its utility subject to this demand schedule, thereby determining the real wage and hence total employment A parametric shift's comparative-static effects on the equilibrium levels of unemployment and welfare are analyzed within this fully unionized economy.     

Endogenous Growth and Equilibrium Unemployment in a North–South Model

A North–South model is developed which incorporates an endogenous rate of equilibrium unemployment in the North in the context of long-run growth. It is shown how increases in the size of public debt and unemployment compensation financed by payroll taxation, all measured relative to productivity, raise the Northern natural rate of unemployment and, consequently, reduce the global rate of long-run growth. The effect of the shocks is also to drive down the rate of employment expansion in the South. A set of the fundamental determinants of the world terms of trade is obtained, which includes policy parameters.