Is There an Income Polarization Among Self-Employed? Dynamics of the Income Distribution and the High Income of Self-Employed and Employees

2006 ◽  
Author(s):  
Joachim Merz
Fractals ◽  
2001 ◽  
Vol 09 (04) ◽  
pp. 463-470 ◽  
Author(s):  
WATARU SOUMA

We investigate the Japanese personal income distribution in the high income range over the 112 years (1887–1998), and that in the middle income range over the 44 years (1955–1998). It is observed that the distribution pattern of the log-normal with power law tail is the universal structure. However, the indexes specifying the distribution differ from year to year. One of the index characterizing the distribution is the mean value of the log-normal distribution; the mean income in the middle income range. It is found that this value correlates linearly with the gross domestic product (GDP). To clarify the temporal change of the equality or inequality of the distribution, we analyze Pareto and Gibrat indexes, which characterize the distribution in the high income range and that in the middle income range, respectively. It is found for some years that there is no correlation between the high income and the middle income. It is also shown that the mean value of Pareto index equals to 2, and the change of this index is effected by the change of the asset price. From these analysis, we derive four constraints that must be satisfied by mathematical models.


PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0251430
Author(s):  
Lazar Ilic ◽  
M. Sawada

Income polarization is a pressing issue which is increasingly discussed by academics and policymakers. The present research examines income polarization in Canada’s eight largest Census Metropolitan Areas (CMAs) using data at the census-tract (CT) level between 1971 and 2016. Generally, there are significant decreasing trends in the middle-income population with simultaneously increasing trends in low-income groups. The high-income groups have been relatively stable with fewer significant increasing population trends. Using conventional mapping and cartograms, patterns of the spatial evolution of income inequality are illustrated. Every CMA examined contains an increasing trend of spatial fragmentation at the patch level within each CMA’s landscape mosaic. The results of a spatial autocorrelation analysis at the sub-patch, CT level, exhibit significant spatial clustering of high-income CTs as one process that dominates the increasingly fragmented landscape mosaic.


2015 ◽  
Vol 105 (3) ◽  
pp. 1217-1245 ◽  
Author(s):  
Michael Kumhof ◽  
Romain Rancière ◽  
Pablo Winant

The paper studies how high household leverage and crises can be caused by changes in the income distribution. Empirically, the periods 1920–1929 and 1983–2008 both exhibited a large increase in the income share of high-income households, a large increase in debt leverage of low- and middle-income households, and an eventual financial and real crisis. The paper presents a theoretical model where higher leverage and crises are the endogenous result of a growing income share of high-income households. The model matches the profiles of the income distribution, the debt-to-income ratio and crisis risk for the three decades preceding the Great Recession. (JEL D14, D31, D33, E32, E44, G01, N22)


2002 ◽  
Vol 3 (3) ◽  
pp. 327-338 ◽  
Author(s):  
Corrado Benassi ◽  
Roberto Cellini ◽  
Alessandra Chirco

Abstract Income distribution affects market demand and its elasticity, and, as a consequence, the optimal behaviour of firms and market equilibrium. This paper focuses on the effects of income polarization, and presents a model where ± for any unimodal density function describing income distribution of the consumers ± income polarization leads to market concentration, i.e., to a smaller number of firms able to survive in the long run, provided that the firms' fixed costs are sufficiently low.


2006 ◽  
pp. 344-348 ◽  
Author(s):  
Sasuke Miyazima ◽  
Keizo Yamamoto

Agrociencia ◽  
2021 ◽  
Vol 55 (7) ◽  
pp. 627-643
Author(s):  
Roberto Gallardo Del Ángel ◽  
Mario Miguel Ojeda Ramírez ◽  
Cecilia Cruz López

Despite the efforts to reduce poverty in rural municipalities income inequality persists in Mexico. This study presents an analysis on rural household income distribution in the country, since it is argued that conditional federal transfers fail on improving income distribution among rural households. The hypothesis stated that, because of local public goods are also part of individual budget constraints, it is rational to think that an expansion in the provision of local public goods will increase total income and, if such public goods are financed with conditional grants that target low-income groups, it is expected that income inequality may decrease. Thus, the objective was to classify rural municipalities in order to observe which among them have benefited from federal grants and those that did not, finding the reasons why assuming grants are accepted as an instrument contributing to reduce poverty and income inequality in recent years. Each group was analysed as a cluster to observe the effect of federal transfers on rural household income distribution. Main results showed that municipalities with rural low income-inequality and better economic development indicators improve income distribution when obtaining unconditional grants. This means that, in such cases, those transfers designed to reduce poverty also reduce rural income inequality. But that was not the case for the high income-inequality groups, where conditional grants did not have any effect on inequality and, in some cases, inequality increased. For the rural high income-inequality group, unconditional grants showed not to have a positive effect on reducing inequality. The clustering and regression analyses revealed large heterogeneity in the rural areas in terms of income and economic development.


2004 ◽  
pp. 274-279
Author(s):  
Keizo Yamamoto ◽  
Sasuke Miyazima ◽  
Rajindar K. Koshal ◽  
Majulika Koshal ◽  
Yuko Yamada

Author(s):  
John K. Mduma

Data from two Household Budget Surveys in 1991-1992 and 2000-2001 in Tanzania indicate that there is no change in inequality between the two surveys. In spite of this finding, and impressive macroeconomic gains, there is growing discontent throughout the country because of the belief that the change from socialist to market policies has worsened income inequality. In this chapter, the authors argue that the Gini index fails to capture some inconspicuous trends in the income distribution, particularly the problem of polarization across space. Using polarization measures based on point density estimation of alienation and identification, they analyze changes in the distribution of household income in Tanzania in the 1990s. Unlike analyses that rely on the Gini index, the authors find that polarization increased significantly between 1992 and 2001. They also find evidence of increased spatial variability across regions and lack of spatial convergence of household incomes.


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