A TEST BETWEEN STOCK‐FLOW MATCHING AND THE RANDOM MATCHING FUNCTION APPROACH*

This article tests between the standard “random matching function” approach and “stock‐flow” matching while controlling for temporal aggregation bias. Consistent with previous empirical work, the random matching function fits the matching data reasonably well. But match flows are more highly correlated with vacancy inflows than is consistent with the random matching approach. Instead the data support stock‐flow matching, where unemployed workers match directly with suitable new vacancies as such vacancies come on to the market.     

THE AGGREGATE DEMAND FOR LABOUR IN AUSTRALIA: A META-ANALYSIS*

In this paper, meta-analysis techniques are applied to 34 studies of the aggregate demand for Australian labour. Inverse associations between the real wage and employment and demand and unemployment are established, and positive associations between demand and employment and the real wage and unemployment are established. The associations are stronger with respect to the real wage. The results suggest that at least two-thirds of the variation in estimates across studies is artifactual and is due to specification differences. It is argued in this paper that the available studies are of limited value to policy formulation. No single empirical study can provide definitive measures of a particular parameter. This guarantees that substantial numbers of empirical studies of the more important parameters describing labor demand will have been produced. (Hamermesh, 1993, p. 61)     

MATCHING FUNCTION FOR THE JAPANESE LABOUR MARKET: RANDOM OR STOCK–FLOW?

This paper estimates outflow equations for the unemployed and job vacancies under random and stock–flow matching using Japanese data. We find that for the outflow of the unemployed, the stock–flow matching model fits better than the random matching model at the quarterly frequency, but not at the monthly frequency. In contrast, the outflow of vacancies is affected by the stock of the unemployed as well as its inflow at both monthly and quarterly frequencies. In addition, we calculate the exit rates of the unemployed and job vacancies to show the relationship between the exit rates and the durations of unemployment and job vacancies.     

OPPORTUNISTIC MATCHING IN THE HOUSING MARKET*

We construct a model of the housing market in which agents differ in their flow values while searching. Agents enter the market relaxed (with high flow values) but move to a desperate state (low flow values) at a Poisson rate if they have not already transacted. We characterize the equilibrium steady‐state matching pattern and the joint distribution of price and time to sale (for sellers). The expected price conditional on time to sale falls with time spent on the market, whereas the conditional variance of price first rises and then falls with time on the market.     

THE MORISHIMA ELASTICITY OF SUBSTITUTION FOR THE VARIABLE PROFIT FUNCTION AND THE DEMAND FOR IMPORTS IN THE UNITED STATES*

In this article, I derive expressions for the Morishima elasticities of substitution (MES) for the variable profit function and estimate these elasticities to shed some light on the substitutability between imports, capital services, and labor services. The results reveal that capital services and imports are Morishima substitutes, irrespective of whether the price of capital services or imports changes, and imports and labor services are also Morishima substitutes, irrespective of whether the price of imports or the wage rate changes. Thus, an increase in the price of U.S. imports (through tariffs or duties) will result in substitution (in the Morishima sense) into labor and capital services.     

THE NEW POLITICAL ECONOMY: ITS EXPLANATORY POWER FOR LDCs*

This paper reviews the new political economy and its relevance to explaining policymaking in the developing countries.     

THE RENT-PRICE RATIO FOR THE AGGREGATE STOCK OF OWNER-OCCUPIED HOUSING

We construct a quarterly time series of the rent-price ratio for the aggregate stock of owner-occupied housing in the United States, starting in 1960, by merging micro data from the last five Decennial Censuses of Housing surveys with price indexes for house prices and rents. We show that the rent-price ratio ranged between 5 and 5.5 percent between 1960 and 1995, but rapidly declined after 1995. By year-end 2006, the rent-price ratio reached a historic low of 3.5 percent. For the rent-price ratio to return to its historical average over, say, the next five years, house prices likely would have to fall considerably.     

AN ILLUSTRATIVE PRODUCTION FUNCTION FOR LABOUR-MANAGED FIRMS*

An illustration of the ambiguities in the behaviour of a labour-managed firm in the long run when both capital and labour are variable is provided by means of an example which can be completely solved. Input demand and output supply functions are derived from a suggested production function. The special case of a homothetic production function is yielded by one of five parameter sets identified.     

微观生产函数与总量生产函数的矛盾——技术再转换

根据“替代原理”和利润最大化的假定,新古典学派得出命题:利润率与人均资本量之间存在着反向单调关系。该命题在单一产品或同比例要素模型中无疑是正确的,然而一进入异质品模型就会面临“技术再转换”的悖论。一个重要的原因在于异质品模型中,在统一利润率的假设下,收入分配会影响相对价格,从而技术不能按人均资本量排序。“技术再转换”的悖论使新古典的总量生产函数受到质疑。     

MATCHING MARKETS WITH MIXED OWNERSHIP: THE CASE FOR A REAL‐LIFE ASSIGNMENT MECHANISM*

We consider a common indivisible good allocation problem whose popular applications include on‐campus housing, kidney exchange, and school choice. We show that the so‐called New House 4 (NH4) mechanism, which has been in use at MIT since the 1980s, is equivalent to a natural adaptation of the well‐known Gale–Shapley (GS) mechanism. We run two experiments comparing NH4 with the prominently advocated Top Trading Cycles (TTC) mechanism and NH4 with GS. We find that under NH4, the participation rate is significantly higher than under TTC. Based on a new ordinal test of efficiency, NH4 is more likely to Pareto dominate TTC.     

FISCAL POLICY AND AGGREGATE CONSUMPTION: NEW EVIDENCE FROM THE UNITED STATES

In this paper we estimate the marginal rate of substitution between aggregate per-capita consumption and per-capita government expenditure on goods and services using US quarterly data over the period 1953 to 1993. This estimate is an important input to any attempt to assess the overall effectiveness of fiscal policy since it directly affects the size of the fiscal policy multiplier. Other recent consumption studies which incorporate the effects of government expenditure have failed to establish a stable estimate of the marginal rate of substitution. We argue that this failure results from imposing the unrealistic assumption that this parameter is constant. In contrast, we allow the marginal rate of substitution to depend on both the level and composition of government spending.