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The author proposes analyzing the dynamics of income positions using dynamic panel ordered probit models. The author disentangles, simultaneously, the roles of state dependence and heterogeneity (observed and non-observed) in explaining income position persistence, such as poverty persistence and affluence persistence. The author applies the approach to Chile exploiting longitudinal data from the P-CASEN 2006–2009. First, the author finds that income position mobility at the bottom and the top of the income distribution is much higher than expected, showing signs that income mobility in the case of Chile might be connected to economic insecurity. Second, the observable individual characteristics have a much stronger impact than true state dependence to explain individuals’ current income position in the income distribution extremes.

In large parts of the world, income inequality has been rising in recent decades. Other regions have experienced declining trends in income inequality. This raises the question of which mechanisms underlie contrasting observed trends in income inequality around the globe. To address this research question in an empirical analysis at the aggregate level, we examine a global sample of 73 countries between 1981 and 2010, studying a broad set of drivers to investigate their interaction and influence on income inequality. Within this broad approach, we are interested in the heterogeneity of income inequality determinants across world regions and along the income distribution. Our findings indicate the existence of a small set of systematic drivers across the global sample of countries. Declining labour income shares and increasing imports from high-income countries significantly contribute to increasing income inequality, while taxation and imports from low-income countries exert countervailing effects. Our study reveals the region-specific impacts of technological change, financial globalisation, domestic financial deepening and public social spending. Most importantly, we do not find systematic evidence of education’s equalising effect across high- and low-income countries. Our results are largely robust to changing the underlying sources of income Ginis, but looking at different segments of income distribution reveals heterogeneous effects.

Purpose – This chapter aims at proposing a methodology for evaluating long-term income distributions according to the equality of opportunity principle.

Approach – We refer to the concept that there is equality of opportunity if the value of the set of opportunities is the same for all individuals, regardless of their circumstances. This approach partitions the population into types, that is, groups of individuals with the same set of circumstances. The type-specific outcome distribution is interpreted as the opportunity set of individuals with the same circumstances. We propose partial and complete rankings on long-term type-specific distributions. Accordingly, these rankings capture inequality between types, and are neutral to inequality within types.

Findings – We show the relationship between long-run and short-run inequality of opportunity and that this relationship can be interpreted in terms of intragenerational mobility. We also show that mobility can act as an equalizer of opportunities when the accounting period is extended.

Originality – The contribution of this work is twofold. First, we develop a decomposition of some measures of long-term inequality of opportunity into measures of short-term inequality of opportunity, applied to distributions, which neutralize the effect of effort on individual income, and may be employed to explain eventual differences arising from an analysis based on the intertemporal context. Second, we propose an index to measure intragenerational mobility and show how it can be interpreted as long-term EOp. Our measure captures only that part of reranking due to the equalization of opportunities over time.

This paper aims to show the interrelation and relevancy of the concept and theory of cultural lag to social justice. The conception of social justice, though wide in scope, is applied in this paper to the limited domain of equality of opportunity and fairness with respect to income distribution.Design/methodology/approach – The methodology of this paper is holistic and interdisciplinary, and interrelates the social and the economic in the overall dynamics of general culture evolution.Findings – The “inverted U‐curve hypothesis” of Simon Kuznets implies that a greater equality of income distribution would be forthcoming in an economy characterized by a mature phase of modern economic growth. Empirical evidence demonstrates that such a movement toward greater equality is subject to question. The American experience of the 1920s and the period from 1973 to the present offers evidence to question the U‐curve hypothesis. Contrary to expectations, during these periods income distribution became more unequal. These periods, indicative of maladjustment, are used to demonstrate and serve as examples of cultural lags. The concept and theory of cultural lag exposes the need for prerequisite institutional adjustment. It consequently appears that the American institutional structure, currently directing the economy toward a policy orientation of laissez‐faire and the resulting increased inequality of income distribution, is anachronistic to a modern industrial society oriented toward the goal of social justice.Originality/value – Relevant to the quest of social justice.

Given the fact that the income disparity has become extremely severe in rural China, the purpose of this paper is to examine heterogeneity in food consumption among various income classes and to investigate the impact of changes in income distribution patterns on food demand in rural China.

In this study, the authors partition the households into five income classes according to the distribution of household per capita net income. Using household data drawn from the China Health and Nutrition Survey in 2011, a two-stage demand model is applied to estimate a food demand system for each of the income classes. After obtaining the estimated income elasticities of eight studied food groups for each income class, the authors then examine the responsiveness of food demand to the changes in income distribution by means of four scenarios with varying income distribution.

The empirical results indicate that substantial differences in food consumption exist across various income classes. Specifically, the lowest-income households are more sensitive to price and income changes for most studied food groups than the highest-income households are. In general, income responsiveness is higher for meats, aquatic products and dairy products. Based on estimated income elasticities, the projected food consumption under different income distribution patterns shows that changes in income distribution have significant influences on food consumption. In addition, the authors conclude that a more equal distribution of income would be associated with a higher demand for food in rural China.

This paper employs a two-stage demand model to estimate food demand in rural China by income classes. The results imply substantial differences in food demand for various income classes. Therefore, income distribution should be taken into account instead of an average estimation for the population as a whole when investigating food demand in rural China. Given the significant changes in income distribution in rural China, this study provides several important policy implications to alleviate income inequality and poverty, as well as to improve nutrition for lower-income classes.

Before the economic reforms, the main problem in the distribution of income in China had been egalitarianism. The economic reforms are aimed at widening the gap between individual incomes in order to raise efficiency and achieve the aim of the common prosperity of all members of the society. This is the same as the result of Kuznet′s research. Before the reforms, China practised a policy of freezing wages and prices for a long period, leading to a situation unfavourable to the young generation in the distribution of income. The situation is undergoing a change in the economic reforms. China mainly adopted the non‐market method in the distribution of consumer goods before the economic reforms, which call for wider use of the market method.

Points out that differences in the background of the working population, are often made responsible for the observed inequality of income distribution. Explores whether the observed distribution in incomes in countries such as the Federal Republic of Germany (West and East), Great Britain, Sweden, the United States and Brazil could not be the result of a statistical distribution process in which households participate. Recalls the early work in statistical thermodynamics by Boltzmann and Maxwell, who studied the distribution of energy among an ensemble of identical molecules, and which showed that not all molecules hold the same energy, but rather that the distribution has an exponential fall‐off character, with most molecules being in the lower energy bracket. Adapts the Maxwell‐Boltzmann distribution to incomes, and transforms these distributions into well‐known Lorenz graphs, and obtains a perfect match for each examined country. Suggests that, as the distributions can be directly related to their corresponding statistical weights, and as their logarithms are proportional to entropy in statistical thermodynamics, it could be shown that the unequal income distribution has a higher entropy, and therefore is more stable than the corresponding low entropy distribution resulting from Boulding′s principle of equal advantage where all households earn the same income. Supposes that neither of the two extreme stand‐points to explain the inequality of incomes can lead to a totally satisfactory explanation. Proposes that evolutionary strategies may be an interesting lead to follow up in more detail.

The purpose of this paper is to study the dynamics of the distribution of per capita income of Indian states in the post‐reform period, in order to identify trends towards convergence‐club formation, polarization or stratification during this period.

The authors adopt the “distribution dynamics” framework that involves estimating kernel density functions, stochastic kernels and ergodic distributions in order to identify these trends.

The results show that there is polarization in India in the post‐reform period and this is due to the contrary growth dynamics of the middle‐income states resulting in the “vanishing middle” of the distribution.

This is the first study that highlights the contrary growth dynamics among the middle‐income states as the driving force behind the polarization of Indian states in the post‐reform period.

The authors analyse how the association between parental background and adult children's earnings changes when net rather than gross children's earnings are considered and disentangle what such changes depend on: differences between pre and after taxes earnings inequality or reranking of individuals along the earnings distribution before and after taxes.

Using data from European Union Statistics on Income and Living Conditions (EU-SILC) 2011, the authors focus on two large European countries, Italy and Poland, with comparable levels of inequality and background-related earnings premia but very different personal income tax (PIT) design and estimate – at both the mean and the deciles of the earnings distribution – the association between parents' characteristics and children's gross and net earnings.

The authors find that in Italy the PIT reduces the magnitude of the association between parental background and adult children's earnings at the top of the distribution, while no effects emerge for Poland, and the reduction is mostly due to a decrease in earnings inequality rather than to a re-ranking of children along the distribution. The findings are confirmed when the authors simulate the introduction of a “quasi flat tax” regime in Italy.

The findings suggest that the higher the tax progressivity, the higher the background-related inequality reduction and the lower the intergenerational association, signalling that the degree of progressivity amongst children may be an effective weapon to reduce intergenerational inequality.

In the literature on intergenerational inequality, the role of taxes is usually overlooked. In this paper, the authors try to fill this gap and enquire how the PIT design affects the association between parental background and adult children's earnings.

There has been growing interest in recent years in modelling various poverty‐related issues. However, there have not been many attempts at empirical estimation of best‐fit income distribution functions with an objective of subsequent use in poverty focused models. The purpose of this paper is to fill this gap by empirically estimating best‐fit income distribution functions for different household income groups and computing poverty and inequality indices for Sri Lanka.

The authors empirically estimated a number of popular distribution functions found in the income distribution literature to find the best‐fit income distribution using household income and expenditure survey data for Sri Lanka and subsequently estimated various poverty and inequality measures.

The results show that the income distributions of all low‐income household groups follow the beta general probability distribution. The poverty measures derived using these distributions show that among the different income groups, the estate low‐income group has the highest incidence of poverty, followed by the rural low‐income group.

According to the best of the authors' knowledge, empirical estimation of income distribution functions for South Asia has never been attempted. The results of this study, even though based on Sri Lankan data, will be relevant to most developing countries in South Asia and will be very useful in developing poverty alleviation strategies.