Income Inequality and Health: Do the Equivalence Scales Matter?

The aim of this paper is to explore the relationship between income inequality and health in the European Union countries using new data from the European Community Household Panel (ECHP). The heterogeneity of the households has been approached using different equivalence scales. A variety of different model specifications were tried using different dependent variables such as life expectancy at birth and child mortality. The results give support to the influence of income inequality on health indicators using aggregate data and panel techniques, and show the sensitivity of the Gini index to the equivalence scale considered.     

上市公司区域差异效应分析

东中西三大地带上市公司之间的区域差异是客观存在的,这种差异对区域经济发展产生了不同程度的正面效应和负面影响。随着社会经济的发展,上市公司与区域经济的关联性会大大加强。     

广州市民休闲生活的调查与研究

本文通过对广州市民的实地问卷调查，在分析广州市民构成的基础上，着重研究：广州市民休闲生活状况和对休闲生活的评价及需求情况。市民对休闲生活的评价与需求，一方面，调查市民对目前休闲生活的满意度并分析影响其休闲生活质量的主要原因；另一方面，了解市民对自身未来的休闲方式、休闲空间的意向，以及对政府和社会在城市休闲建设方面所持的期望与建议。     

Monetary equilibria over an infinite horizon

Summary. Money provides liquidity services through a cash-in-advance constraint. The exchange of commodities and assets extends over an infinite horizon under uncertainty and a sequentially complete asset market. Monetary policy sets the path of rates of interest and accommodates the demand for balances through open market operations or loans. A public authority, which, most pertinently, inherits a strictly positive public debt, raises revenue from taxes and seignorage, and it distributes possible budget surpluses to individuals through transfers. Competitive equilibria exist, under mild solvency conditions. But, for a fixed path of rates of interest, there is a non-trivial multiplicity of equilibrium paths of prices of commodities. Determinacy requires that, subject to no-arbitrage and in addition to rates of interest, the prices of state-contingent revenues be somehow determined.Received: 16 April 2003, Revised: 16 January 2004, JEL Classification Numbers: D50, E40, E50.We are grateful to Pietro Reichlin, Rabah Amir, Tomoyuki Nakajima, Armando Dominioni and Leo Ferraris for helpful discussions and their reading of preliminary drafts. The usual disclaimer applies. An earlier version was circulated as [4].     

Taxation, Reranking and Equivalence Scales

It is conjectured that if the government has a distributional objective and formulates tax policy with a view to equitable treatment of households, then adopting the scale that is implicit in transfer policy should identify only reranking that has no equity foundation. This motivates the question: can the reranking‐minimizing scales be identified as those implicit in the transfer system? The analysis presented in this study suggests that the equivalence scale which minimizes reranking, while not necessarily equal to the tax implicit equivalence scale, is nevertheless in its vicinity.     

Empirical Analysis of Indirect Network Effects in the Market for Personal Digital Assistants

We present a framework to measure empirically the size of indirect network effects in high-technology markets with competing incompatible technology standards. These indirect network effects arise due to inter-dependence in demand for hardware and compatible software. By modeling the joint determination of hardware sales and software availability in the market, we are able to describe the nature of demand inter-dependence and to measure the size of the indirect network effects. We apply the model to price and sales data from the industry for personal digital assistants (PDAs) along with the availability of software titles compatible with each PDA hardware standard. Our empirical results indicate significant indirect network effects. By July 2002, the network effect explains roughly 22% of the log-odds ratio of the sales of all Palm O/S compatible PDA-s to Microsoft O/S compatible PDA-s, where the remaining 78% reflects price and model features. We also use our model estimates to study the growth of the installed bases of Palm and Microsoft PDA hardware, with and without the availability of compatible third party software. We find that lack of third party software negatively impacts the evolution of the installed hardware bases of both formats. These results suggest PDA hardware firms would benefit from investing resources in increasing the provision of software for their products. We then compare the benefits of investments in software with investments in the quality of hardware technology. This exercise helps disentangle the potential for incremental hardware sales due to hardware quality improvement from that of positive feedback due to market software provision.     

Modeling Cyclical Asymmetries in GDP: International Evidence

This paper models asymmetric behavior in GDP growth in the USA, Germany, France, and Japan. It develops smooth transition autoregressive models and interprets nonlinear dynamics in terms of cyclical asymmetries. A procedure for defining data-based, qualitative cyclical regimes from the estimated models is proposed, and generalized impulse response functions are computed to assess to what extent the response to a shock changes over different phases of the cycle.