On the reconciliation of efficiency and inequality aversion with heterogeneous populations: characterization results

We characterize a family of r-extended generalized Lorenz dominance quasi-orderings and a family of r-Gini welfare orderings, on the basis of two allegedly "incompatible" axioms for heterogeneous welfare comparisons (Ebert, 1997, Ebert and Moyes, 2003, Shorrocks, 1995), but at the cost of either completeness or separability.heterogeneous welfare comparisons, equivalent income functions.

The Rise or Fall of World Inequality Big Issue or Apparent Controversy?

In the age of globalization, the question whether inequality in the world rose or fell down, is a hot topic. Leading scholars in the field of economic inequality measurement developed methods to estimate empirically the distribution of welfare (income) amongst world citizens. Despite their similar methodologies, they do not seem to agree about the conclusion. In the present paper we pinpoint down what drives the two extreme positions apart. Sala-i-Martin (2002a,b), who claims that there can be no doubt that world inequality went down between the late seventies and the late nineties, has in fact calculated population weighted inequality between countries. Milanovic (2002a,b,c) does not deny this, but illustrates the empirical importance of divergent tendencies at the sub-national level (especially urban versus rural regions) for assessing true world inequality and comes to the reverse conclusion. Nevertheless, there seems to be unanimity, especially amongst the contributions quoted here, about the inequality measure(s) to be used for assessing world income distributions. We show that at least for international inequality, there is empirical evidence for rank reversals among the class of generalized entropy measures and expect the same to be true of world inequality. However, the normative debate about which inequality measure to use for assessing true world inequality has not yet begun.

Non-welfare economics and the well-being of phantom agents: an appeal to caution

Besley (1988) is one of the few exceptional articles containing non-welfarist optimal tax devices. Feehan(1990) reports an error in his first-best rules. The present note criticizes the fundamentals of Besley's second-best rules. These rules optimize the welfare or well-being of phantom agents rather than the corrected welfare of real existing agents in society.

Prices, Unit Values and Local Measurement Units in Rural Surveys: an Econometric Approach with an Application to Poverty Measurement in Ethiopia

For many research problems in developing countries, some information on prices faced by households is required, for example if subsistence consumption is a substantial part of consumption. These prices are not readily available from household surveys, and at times they are not easily observed, for example if markets are thin and systematic price information can only be observed from markets some distance away from communities. Furthermore, quantities consumed and produced are often in local units presenting further problems for the analysis. We provide an econometric approach to estimate prices and quantity conversion factors from household expenditure data, using data from rural Ethiopia to illustrate the approach. In an application, we show that the conclusions about poverty changes over time are significantly affected by using alternative strategies to convert local units and to value subsistence consumption. We find in our case that mean unit values result in the overestimation of prices due to outliers and other sources of measurement error. Exogenous consumer price sources, often collected at larger markets outside the village, tend to give slightly lower values than our estimates.household surveys, unit values, subsistence consumption, local measurement units, poverty

Prices, local measurement units and subsistence consumption in rural surveys: An econometric approach with an application to Ethiopia

For many research problems in developing countries, some information on prices faced by households is required for the analysis, but these prices are not readily available from household surveys, nor is it straightforward to observe them, especially if subsistence consumption is a substantial part of consumption. Furthermore, quantities consumed and produced are often in local units presenting further problems for the analysis. Building on Deaton’s (1987) seminal work, we provide an econometric approach to estimate prices and quantity conversion factors from household expenditure data.. We use panel data from rural Ethiopia to illustrate the approach and to investigate the potential quality bias in the estimation of the prices. In an application we show that the conclusions about poverty changes over time are significantly affected by using less appropriate strategies to convert local units and to value subsistence consumption.household surveys, unit values, subsistence consumption, local measurement units

Merit goods and phantom agents

Besley (1988) is one of the few exceptional articles containing non-welfarist optimal tax devices. Feehan (1990) reports an error in his first-best rules. The present note argues that Besley's second-best rules optimize the welfare of phantom agents rather than the corrected welfare of real existing agents in society.merit goods

Prices, unit values and local measurement units in rural surveys: an econometric approach with an application to poverty measurement in Ethiopia

For many research problems in developing countries, some information on prices faced by households is required for the analysis, for example if subsistence consumption is a substantial part of consumption. These prices are not readily available from household surveys, nor is it straightforward to observe them. Furthermore, quantities consumed and produced are often in local units presenting further problems for the analysis. We provide an econometric approach to estimate prices and quantity conversion factors from household expenditure data. We use panel data from rural Ethiopia to illustrate the approach and to investigate the potential exogenous quality bias in the estimation of the prices. In an application, we show that the conclusions about poverty changes over time are significantly affected by using less appropriate strategies to convert local units and to value subsistence consumption. We find that mean unit values result in the overestimation of prices due to outliers and other sources of measurement error. Exogenous consumer price sources, often collected at larger markets outside the village, tend to be slightly lower than our estimates.household surveys, unit values, subsistence consumption, local measurement units, poverty

Homeownership and the life cycle: An ordered logit approach.

This paper presents an ordered logit approach to model the optimal timing of buying a house in the life cycle. The model is applied to three recent Belgian household budget surveys. We find that households postpone homeownership or choose to be lifelong tenant due to an increase of the transaction tax rate, the real interest rate on mortgages and an indicator for the evolution of real house prices. Expenditures on nondurables, on the contrary, have a positive impact on (early) homeownership.Logit; Homeownership; Life cycle; Transaction tax;