Potential welfare and the sum of individual compensating or equivalent variations

We investigate under which conditions the sign of the sum of both the individual compensating and equivalent variations correctly indicates changes in potential welfare. Our results reproduce exactly those of Chipman and Moore for the National Income Test, which did not rely on individual measures of welfare directly related to consumers' preferences:

• 1.(i) a necessary and sufficient condition for the new test to be valid is that individual preferences are identical and homothetic; and
• 2.(ii) if the distribution of income is constant and preferences are homothetic, then the new test is valid only if preferences are also identical.

     

Costly offers and the equilibration properties of the multiple unit double auction under conditions of unpredictable shifts of demand and supply

The paper reports on the behavior of markets in which a cost is imposed in the form of a tax on bids and asks (but not contracts) that are tendered in the market. The markets were nonstationary in the sense that market demand and market supply shifted unpredictably in each period. The results are as follows:

• 1.(1) A market equilibration process is observed across the periods of nonstationary markets.
• 2.(2) The price discovery process in the costly offer condition was ‘incomplete’ relative to the free offer case.
• 3.(3) Price equilibration with the offer cost was slower and efficiencies were reduced.

     

Socio-ecological explanations for crowding-out effects from economic field experiments in southern Africa

Economic and psychological literature mentions three conditions under which the crowding-out effect of pro-social behaviour is likely to occur and to crowd out citizens' moral obligations to behave co-operatively. I use a framed field experiment on joint extraction from a common-pool resource (CPR) where the crowding-out effect has already been reported before in combination with the trust game carried out in farming communities of Namibia and South Africa to replicate these conditions. The research design and the cross-cultural setting enable to explicitly control for these effects. The results of the experiments support that the crowding-out effect depends on:

• •The nature of the external intervention (controlling vs. supportive external intervention)
• •The degree of participants self-determination (high vs. low self-determination in the group)
• •A society's norms of trust and reciprocity (high vs. low trust within the society)

The results imply that outside regulations aiming to conserve natural resources risk worsening the situation when neglecting democratic legitimization as well as local community norms.     

The bioeconomics of tritrophic systems: applications to invasive species

Adapted species in nature are assumed to have solved renewable resource management problems, and this is examined here using a physiologically based model of energy acquisition and allocation. Newly established invasive species are merely in an early phase of this process in their new environment. Analogies between the economies of humans and other species are used to develop an objective function for individual utility of energy allocation. The objective function includes the physiologically based population dynamics models of the consumer and resource species in a food chain as constraints. The model applies to all trophic levels in a food chain including human harvesting of renewable resources (see also Regev et al. (Regev, U., Gutierrez, A.P., Schreiber, S., Zilberman, D., 1998. Biological and Economic Foundation of Renewable Resource Exploitation. Ecological Economics. 26 (3), 227-242.)).Specifically, the analysis:

• (1)Attempts to combine ecological and economic theory;
• (2)Points out the importance of time frame in the two economies (evolutionary vs. market time);
• (3)Examines the effects of expected uncertainty due to environmental hazards in defining energy acquisition and allocation strategies in two invasive aphid species at the extremes of so called r- and K-strategies and the well adapted Central American cotton–cotton bollweevil system;
• (4)Evaluates the effects of changes in behavioral and physiological parameters and environmental degradation on the abundance of resource and consumer species.

     

Euro introduction: Has there been a structural change? Study on 10 European Union countries

The introduction of the Euro in January 1999 consecrated the achievement of a single currency system within most of the European Union. Despite the dramatic change in the macroeconomic dynamics that this event is likely to have caused, the literature has paid little attention to testing for the existence of such a break and establishing its qualitative characteristics.This empirical study, based on the Blanchard and Quah (1989) methodology for seven countries having adopted the Euro currency and three members of the European Union which have preserved their own currencies reveals:

• i)very significant breaks for the Euro countries around 1992 – the year of adoption of the Maastricht Treaty – and 2000, not shared by the three non-Euro countries.
• ii)an increase in the influence of supply shocks on the dynamics of output, unemployment and the interest rate after the breaks for the Euro countries, along with an increase of the part played by monetary disturbances within total demand at long horizons. These conclusions do not generally hold for the three non-Euro countries.

     

Impact of foreign prices and interest rates on canadian economy under alternative monetary and exchange rate regimes

The main objective of this paper is to analyze the impact of U.S. short- and long-term monetary policy under both flexible and managed floating systems, using the new CANDIDE Model 2.0. We have also examined the role of domestic monetary policy in the Canadian economy under both fixed and flexible exchange rate systems. The following are some of the important findings of our study:

1. Our results support the traditional view that under the fixed exchange rate regime, monetary authorities cannot successfully pursue an independent monetary policy from its trading partners — an effort to increase money supply will be almost offset by increases in the balance of payments deficit. In contrast, in the flexible exchange rate regime, monetary policy is more effective in producing an increased growth in output and employment. However the increased output growth comes at the cost of higher prices induced by increased wages and a depreciation of the Canadian dollar.
2. Our results suggest that the impact of U.S. interest rates on investment, GNE, employment, productivity, and government debt is less severe in a pure floating exchange rate regime, compared to the managed floating system. However, the impact of U.S. interest rate policy on the Canadian inflation rate is worse in the case of flexible exchange rate regime. Even though real income and inflation are less favourable in both cases, our results indicate a trade-off between output growth and inflation.
3. Our results imply that under a pure floating monetary authorities can determine the long-run rate of inflation in Canada independent of others. However, the United States and Canadian economies are interrelated during the adjustment process, even under the flexible exchange rates, through the terms of trade and the wage-price spiral channels.

     

Efficient price and capacity choices under uncertain demand: An empirical analysis

Traditional economic analyses of the peak-load problem typically assume an unrealistic degree of regularity in demand during well-defined peak and off-peak periods. This issue is addressed through a comprehensive statistical model that separates demand into its systematic and stochastic components. This model is combined with a traditional economic model and applied to local telephone service, leading to substantive conclusions relevant for managerial decisions as well as further research, among them:

? Neglecting the systematicand stochastic structure of demand may lead to inefficient tariffs. Efficient measured service structures typically price individual callsbelow incremental capacity cost.

? Industry wide capacity decision rules that are exclusively driven by blockage probability targets during narrowly defined time periods may be economically inefficient.

? For telephone service, spot pricing, which sets high prices during periods ofactual congestion, has the potential to be considerably more efficient than traditional tariffs that set high prices during periods ofexpected congestion.

     

Underground Economy,Evasion and Inequality

Economic theory is paying increasing attention to a non-observed economy (NOE) and its causes. Recently, a couple of works (Rosser et al., 2000 Rosser, J. B., Rosser, M. V. and Ahmed, E. 2000. Income inequality and the informal economy in transitions economies. Journal of Comparative Economics, 28(1): 156–171.  [Google Scholar], 2003 Rosser, J. B., Rosser, M. V. and Ahmed, E. 2003. Multiple unofficial economy equilibria and income distribution dynamics in systemic transition. Journal of Post Keynesian Economics, 25(3): 425–447. [Web of Science ®] , [Google Scholar]) have claimed that there is a positive relationship between income inequality and the size of NOE. This supposed relationship is not so clear and deserves in-depth analysis. There is a crucial aspect that has been completely avoided in these studies: income inequality is mainly measured using ‘regular’ incomes and this fact could lead to some bias. The existence of a certain size of NOE implies some income evasion that can affect the inequality indexes used in the study of the relationship between NOE and inequality. Including the regional share of NOE in a wage equation, I find that, in the specific case of the Italian private sector employees, the income evasion attached to NOE tends to reduce inequality measured by regular wages statistics.     

Convergence in income inequality? evidence from panel unit root tests with structural breaks

This paper empirically tests whether there is evidence of convergence in income inequality, as predicted by several versions of the neoclassical growth model, using a large panel of annual data for the 48 contiguous states in the US over the 1916?C2005 period. By implementing the panel LM unit root test developed by Im et?al. (Oxford Bull Econ Stat 67:393?C419, 2005, Panel LM unit-root tests with trend shifts, Mimeo, 2010) that allows for the presence of structural breaks and heterogeneity in the panel, we find overwhelming evidence in support of convergence in income inequality. In addition, the results are robust to alternative inequality indicators used, different notions of stochastic convergence defined, and additional cross-sectional correlation considered.     

The Middle Class Consensus and Economic Development

A middle class consensus is defined as a high share of income for the middle class and a low degree of ethnic divisons. The paper links a middle class consensus to resource endowments, along the lines of the provocative thesis of Engerman and Sokoloff (1997 and 2000). This paper exploits this association using tropical resource endowments as instruments for inequality. A higher share of income for the middle class and lower ethnic divisions are associated with higher income and higher growth, as well as with more education, better health, better infrastructure, better economic policies, less political instability, less civil war and ethnic minorities at risk, more social modernization and more democracy.     

Income inequality and economic growth—the Kuznets curve revisited

In a neoclassical growth framework with a typical political-economy mechanism, this paper reexamines the relationship between the income inequality and economic growth by introducing government spending into the production function and the utility function. It demonstrates that Kuznets’ famous inverted-U shape relationship between inequality and economic growth will hold—the growth rate will be first increasing with the income inequality before the growth rate decreases with inequality. __________ Translated from The Journal of World Economy (世界经济), 2005,(5) (in Chinese)     

Income, income inequality, and health: Evidence from China

This paper tests using survey data from China whether individual health is associated with income and community-level income inequality. Although poor health and high inequality are key features of many developing countries, most of the earlier literature has drawn on data from developed countries in studying the association between the two. We find that self-reported health status increases with per capita income, but at a decreasing rate. Controlling for per capita income, we find an inverted-U association between self-reported health status and income inequality, which suggests that high inequality in a community poses threats to health. We also find that high inequality increases the probability of health-compromising behavior such as smoking and alcohol consumption. Most of our findings are robust to different measures of health status and income inequality. Journal of Comparative Economics 34 (4) (2006) 668–693.     

Choosing propensity score matching over regression adjustment for causal inference: when,why and how it makes sense

Summary

This study identified when regression adjustment fails to adjust adequately for differences in observed covariates and where propensity score matching is the only alternative.

Multivariate analysis might fail to adjust for observed confounders if:

• 1. The means of the propensity scores in the two groups are more than one-half a standard deviation apart unless distributions of the covariates in both groups are nearly symmetric, sample sizes of the two groups are approximately the same and distributions of the covariates in the two groups have similar variances;

• 2. The ratio of the propensity score variances in the two groups is significantly different from one;

• 3. The ratio of residual variances in the two groups after adjusting for the propensity score is significantly different from one.

Conducted retrospective analysis showed that the treatment effect would be an estimated $305 (or 26%) less if the misspecified outcome model had been chosen.     

Financialization and the rentier income share – evidence from the USA and Germany

During the past two decades, there has been a shift of significance from the real to the financial sector. In the course of (financial) globalization, measures of liberalization and deregulation have contributed to a strengthening of financial capital. The concept of shareholder value orientation has become more powerful, capital income has increased tremendously, while real wages have stagnated. Most industrial countries have experienced a decline in the share of labor income. Based on a review of empirics and literature, this paper seeks to determine who gained from the fall in the labor share of income in the USA and Germany, respectively. If financialization is indeed responsible for the decline, rentiers should be the beneficiaries. In order to identify the relevant effects, the profit share of the two countries under observation is split between the share of retained earnings and the share of net property income (= rentiers’ income) using a modification of the approach chosen by Epstein and Jayadev (2005 Epstein, G. and Jayadev, A. 2005. “The rise of rentier incomes in OECD countries: Financialization, central bank policy and labor solidarity”. In Financialization and the world economy, Edited by: Epstein, G. Cheltenham: Edward Elgar.  [Google Scholar]). The evidence presented shows that the development of the rentier income share indeed corresponds quite well with the stages of development of financialization in the two different countries: in the US, where the important shift towards financialization occurred in the early 1980s, the rentiers’ share of income shows a corresponding leap upwards exactly at that time and remains on a higher level until the end of the observation period. In Germany, the process of financialization started much later – in the beginning of the 1990s – and followed a much more gradual transition, which is perfectly mirrored by the development of income shares: from the 1990s onwards, the rentiers’ income share gradually increased over time.     

ZAKAT AND INEQUALITY: SOME EVIDENCE FROM PAKISTAN

Zakat is an important form of religiously-mandated charity under Islam. This paper examines its impact on income inequality in Pakistan. Data from 1987–88 are used to construct two income distributions-one that would have obtained if zakat had not been given, and one that did obtain when such giving took place. Atkinson-Kolm-Sen relative indices of income inequality are computed which show that zakat does reduce measured income inequality in Pakistan. Both intra-province and inter-province components of over-all inequality decline, though the amount of change is small.

So give to the kinsman his due, and to the needy, and to the wayfarer. That b best for those who seek Allah's countenance.

The Koran     

Inflation,growth, and distribution: The Brazilian economy after the post war

Abstract

Following Marglin and Bhaduri (1990 Marglin, S.A., and Bhaduri, A. “Profit Squeeze and Keynesian Theory.” In S.A. Marglin and J. Schor (eds.), The Golden Age of Capitalism. Reinterpreting the Postwar Experience. Oxford: Clarendon, 1990. [Google Scholar]), the purpose of this paper is to investigate empirically the interaction between income distribution and growth of aggregate demand during the 1951–89 period in Brazil. Applying Hein and Vogel’s (2008) methodology we conclude that the Brazilian economy showed a profit-led demand regime. In a context of high inflation, high concentration of markets, and wage control, retained profits were the main source to finance new capital. In this sense, we found a large sensitivity of investment relative to the wage share, a result that is compatible with a consumption pattern based on high income, which supported the growth trend with low wages observed during the period.     

Duty-free zone,unemployment, and welfare a note

We consider a small open Harris-Todaro economy with the urban sector consisting of a duty-free zone and a non-duty free zone. There is no capital mobility between the urban sector and the rural sector, but capital is perfectly shiftable between the two sub-sectors of the urban sector. A policy of expanding the duty-free zone through the reduction in import-duty on intermediate goods in that sector ultimately lowers the level of output of that sector. This policy also raises the level of unemployment, lowers national income (social welfare), and increases economic inequality. If, however, the tariff on the final product is reduced in that sector, we get the opposite result.     

Religiosity,Economics and Life Satisfaction

This paper uses a large individual data set from the Euro Barometer Survey (ICPSR 1993 Interuniversity Consortium for Political and Economic Research (ICPSR) 1993 Euro-Barometer Surveys Ann Arbor: University of Michigan  ) to estimate the influence of religious phenomena on self-perceived satisfaction of an individual, controlling for macroeconomic conditions, effects of his political stance, and other socio-economic variables. Our estimated ordered logit model results show that an individual's life satisfaction is positively related to measures of strong religious attachment in the sense of being willing to commit to attending religious services frequently. Our other findings include that no strong evidence exists for the hypothesis that leftists suffer more from income inequality.     

Dynamic interdependence of sovereign credit default swaps in BRICS and MIST countries

This article examines the interactions of emerging markets sovereign credit default swaps (CDS). Using a generalized vector autoregressive framework and principal component analysis, we find significant spillover effects within the two groups of emerging markets under study. Using the principal component analysis, we show that global financial market factors are important drivers of BRICS and MIST sovereign CDS spreads variability. Focusing on the forecast error variance decomposition, most of the spillover effects are documented among the emerging markets CDS. Brazil and Mexico contribute the largest net directional spillovers to the other emerging markets studied.

Highlights:

• There exist significant CDS spillover effects for MIST and BRICS countries.

• Mexico dominates the spillover effects within the MIST group while Brazil dominates the spillover effects within the BRICS group.

• As determined by principal component analysis, global financial market factors are important drivers of BRICS and MIST sovereign CDS spreads variability.

• There exists a relatively small net directional spillover from global financial market factors to the countries under study; however, the total spillover is time-varying.

• A large proportion of the forecast error variance in the markets studied comes from spillovers.