ARE LABOUR FORCE PARTICIPATION RATES NON‐STATIONARY? EVIDENCE FROM 130 YEARS FOR G7 COUNTRIES*

This paper applies a unit root test with a non‐linear threshold to examine whether labour force participation rates are mean reverting for G7 countries using annual data over a 130 year period. We find some evidence of mean reversion for just over half the sample; however, this result is sensitive to regime shifts. We also examine whether the labour force participation rate is trend reverting through employing a lagrange multiplier (LM) unit root test with one and two structural breaks in the intercept and slope. The LM unit root test provides no additional evidence in support of stationarity. On the basis of the unit root tests for mean reversion we conclude that there is at best mixed evidence that long‐term changes in unemployment rates translate into long‐term changes in employment rates and that the unemployment rate is a useful indicator of joblessness.     

A Measure of Competition Based on 10‐K Filings

In this paper we develop a measure of competition based on management's disclosures in their 10‐K filing and find that firms’ rates of diminishing marginal returns on new and existing investment vary significantly with our measure. We show that these firm‐level disclosures are related to existing industry‐level measures of disclosure (e.g., Herfindahl index), but capture something distinctly new. In particular, we show that the measure has both across‐industry variation and within‐industry variation, and each is related to the firm's future rates of diminishing marginal returns. As such, our measure is a useful complement to existing measures of competition. We present a battery of specification tests designed to explore the boundaries of our measure and how it varies with the definition of industry and the presence of other measures of competition.     

Panel data, cointegration, causality and Wagner's law: Empirical evidence from Chinese provinces

This paper tests Wagner's law of increasing state activity using panels of Chinese provinces. The paper's main methodological contribution is in that we employ for the first time in the literature on Wagner's law a panel unit root, panel cointegration and Granger causality testing approach. Overall, we find mixed evidence in support of Wagner's law for China's central and western provinces, but no support for Wagner's law for the full panel of provinces or for the panel of China's eastern provinces.     

A GENERAL METHOD FOR CREATING LORENZ CURVES

A general method to construct parametric Lorenz models of the weighted‐product form is offered in this paper. Initially, a general result to describe the conditions for the weighted‐product model to be a Lorenz curve, created by using several component parametric Lorenz models, is given. We show that the key property for an ideal component model is that the ratio between its second derivative and its first derivative is increasing. Then, a set of Lorenz models, consisting of a basic group of models, along with their convex combinations, is proposed, and it is shown that any model in the set possesses this key property. We introduce the concept of balanced fit, which provides a means of assigning weights, according to the preferences of the practitioner, to two alternative objectives for developing Lorenz curves in practice. These objectives are generating an acceptable Lorenz curve and improving the accuracy of the density estimation. We apply the balanced fit approach to income survey data from China to illustrate the performance of our models. We first show that our models outperform other popular traditional Lorenz models in the literature. Second, we compare the results generated by the balanced fit approach applied to one of the Lorenz models that we develop with those generated by the kernel method to show that the approach proposed in the paper generates plausible density estimates.     

Estimating Current Cost Depreciation Expense Using Numerical Analysis and the STAPOL Technique: A Pedagogic Exposition

Current cost accounting (CCA) recommendations have led to complex measurement problems. This paper aims to provoke discussion of the use of numerical analysis and the STAPOL technique as a method for measuring current cost depreciation expense. The measurement method analysed has a scientific foundation, is simple to apply, and yields accurate results. With slight modification, the method analysed is also applicable to other areas of CCA characterized by intractable measurement problems. Unlike other papers which have used differential calculus to analyse the use of numerical analysis in accounting, the exposition in this paper depends on only a rudimentary knowledge of algebra.     

The Impact of Surplus Schooling on Worker Productivity

Human capital theory suggests that education enhances worker productivity and is reflected in higher individual earnings. We use data from the 1969 Survey of Working Conditions and the 1973 and 1977 Quality of Employment Surveys, and a model derived from the industrial psychology literature, to test the proposition that workers' education in excess of what their jobs require can have adverse effects on job satisfaction and other correlates of worker productivity. Our results support earlier studies that have found surplus schooling has a negative effect on job satisfaction. Our findings also indicate that the negative impact of surplus schooling on job satisfaction and turnover is more significant for workers with a higher level of surplus education. Finally, the negative effects of surplus schooling appear to change over time.     

New Institutional Economics in the Post-Socialist Transformation Debate

The paper suggests that there is a tension between the basic tenant of New Institutional Economics (NIE) and the manner in which it has been applied in the debate on post-socialist transformation. This tension is explored in the context of four main perspectives on NIE: (i) property rights, (ii) transaction costs economics, (iii) new economic history, and (iv) evolutionary economics. There are two main arguments. The first is that the transformation phase should be seen as 'open-ended' rather than a 'closed process' where the 'pure market' is the inevitable end result. The second is that, although the NIE literature touches on most of the issues which are relevant to post-socialist transformation, the insights that it offers are still too general for policy guidance.