Wealth accumulation and aggregate demand stagnation in a two class economy with applications to the United States (original) (raw)

Demand driven growth and capital distribution in a two class model with applications to the United States

Structural Change and Economic Dynamics, 2018

We present a demand driven growth and distribution model of capitalists and workers. Our model highlights dynamics of wealth distribution with class-differentiated savings which are themselves distinct from the decision to invest and accumulate capital. At the steady state, investment parameters do not influence the distribution of wealth but there exists a long run paradox of thrift effect which distributes wealth to capitalists whilst simultaneously exerting downward pressure on the level of aggregate demand. Applied to annual US data from 1950-2015 we find that the share of capitalist wealth will stabilize at approximately 68%, fairly close to the Kotlikoff-Summers dynastic capital range. The demand driven nature of our model implies a key role for the capitalist saving rate in jointly reducing macroeconomic performance and increasing wealth inequality. This may be an important issue in mature, low growth capitalist economies.

Dynamics of wealth inequality

Comptes Rendus Physique, 2019

We study an agent-based model of evolution of wealth distribution in a macroeconomic system. The evolution is driven by multiplicative stochastic fluctuations governed by the law of proportionate growth and interactions between agents. We are mainly interested in interactions increasing wealth inequality that is in a local implementation of the accumulated advantage principle. Such interactions destabilise the system. They are confronted in the model with a global regulatory mechanism which reduces wealth inequality. There are different scenarios emerging as a net effect of these two competing mechanisms. When the effect of the global regulation (economic interventionism) is too weak the system is unstable and it never reaches equilibrium. When the effect is sufficiently strong the system evolves towards a limiting stationary distribution with a Pareto tail. In between there is a critical phase. In this phase the system may evolve towards a steady state with a multimodal wealth distribution. The corresponding cumulative density function has a characteristic stairway pattern which reflects the effect of economic stratification. The stairs represent wealth levels of economic classes separated by wealth gaps. As we show, the pattern is typical for macroeconomic systems with a limited economic freedom. One can find such a multimodal pattern in empirical data, for instance, in the highest percentile of wealth distribution for the population in urban areas of China.

A Dynamic Model of Personal Wealth and Income Distribution in a Growing Closed Economy

Jahrbücher für Nationalökonomie und Statistik, 1983

A two-sector, two-class growth model is developed incorporating the following features: (a) the capital good is more capital intensive than the wage good, (b) the wage good is different from the consumption good of the capitalists, and (c) the saving/income ratio is a function of wealth holdings. In this model, we derive conditions under which a more egalitarian wealth distribution is associated with a more egalitarian income distribution. We Aemonstrate the difficulty of achieving a constant long-run wealth and income distribution by market forces alone. The savings behavior may be incompatible with such an objective and there may not exist any technological progress that would sustain a desirable wealth and income distribution. As a result, policy intervention in the form of direct wealth and income transfers may be necessary to attain a desirable wealth and income distribution •in the long ruff: A Dynamic Model of Personal Wealth and Income Distribution in a Growing Closed Economy

Growth and income inequality: a canonical model

Economic Theory, 2006

We develop an endogenous growth model with elastic labor supply, in which agents differ in their initial endowments of physical capital. In this framework, the growth rate and the distribution of income are jointly determined. The key equilibrating variable is the equilibrium labor supply. It determines the rate of return to capital, which in turn affects both the rate of capital accumulation and the distribution of income across agents. We then examine the impact of various structural shocks on growth and distribution. We find that faster growth is associated with a more unequal, contemporaneous distribution of income, consistent with recent empirical findings.

Inequality and growth: the perverse relation between the productive and the non-productive assets of the economy

Journal of Evolutionary Economics

The explosion generated by the global financial crisis in 2008 and its transmission to the real economies have been interpreted as calling for new kinds of regulation of the banking and the financial systems that would have allowed reestablishing a virtuous relation between the real and the financial sectors of the economy. In this paper we maintain a different view, that the financial crisis and the ensuing real crisis have roots in the strong increase in income inequality that has been taking place in the Western world in the last thirty years or so. This has created an all around aggregate demand deficiency crisis that has strongly reduced prospects and opportunities for investments in productive capacities and shifted resources toward other uses, thus feeding a perverse relation between the productive and the nonproductive assets of the economy. In this context the way out of the crisis is reestablishing the right distributive conditions, which cannot be obtained by a policy aimed at relieving the weight of private or public debts but calls for a redistribution through taxes on the incomes of non-productive sectors, a fine tuning that should prevent excessive taxations transforming positive into negative effects.

A Stochastic Model of Wealth Accumulation with Class Division

Metroeconomica, 2014

In this paper we propose a stochastic model in which wealth accumulation depends on the role that agents play in the society: capitalists or workers. A random mechanism of class selection shapes the social structure of the economy based on wealth distribution dynamics. As a result, the society may evolve towards an unequal outcome with few rich and many poor individuals, even starting from perfect equality. We study the dynamic properties of the model by means of computer simulations. A maximum likelihood estimation procedure is applied to analyse the Pareto or power law tail of wealth distribution. We also provide a scenario analysis to explore the system's behaviour under alternative parameter settings.

On relative-wealth effects and long-run growth

Research in Economics, 2001

We develop a growth model in which individuals care about their social status, which is in turn determined by their relative wealth. It is shown that the presence of a desire for status, even if very limited, can generate endogenous long-run growth. When the status-seeking motive is weak, long-run growth only appears if the initial stock of capital is large enough.

Wealth Inequality and Economic Growth: A Macroeconomic Perspective

Conference Paper, Australian Conference of Economists (ACE 2015), QUT, Brisbane, Australia, July 07-10, 2015, 2015

The effects of inequality on economic growth has been a growing concern for researchers and policy makers for many decades. However, almost all of these studies use income distribution as a proxy for income as well as wealth inequality. Wealth may be more concentrated than income and therefore, wealth inequality may be much higher than income inequality. Using a new panel data set for 45 sample countries over the period 2000-2012, this study investigates the effects of wealth inequality on subsequent economic growth. Empirical results from the system GMM estimates suggest that the unequal distribution of wealth significantly deters cross country economic growth. However, improved governance may reduce wealth inequality and thereby promote growth. The results are robust to alternative estimators, alternative measures of wealth inequality, as well as econometric specification.

Economic growth and the optimal inequality of income

Annales. Etyka w Życiu Gospodarczym

Inequality of income is one of the significant factors forming social capital. Two views dominate among economists dealing with the influence of income inequality on economic growth. On the one hand, a too low level of income inequality does not motivate people to increase their labour productivity. Low inequality of income might result from an extended social care system and a GDP burdened with social transfers. A good example may be a situation when an unemployed person refuses to accept a job offer and prefers unemployment benefits to a slightly higher salary. Moreover, a lack of incentives for an employee who fails to acknowledge the economic sense of increasing the productivity of his or her work might lead to a slower growth of the economy. On the other hand, a contrary view suggests that an increase in inequality of income has a negative impact on the economy. The accumulation of wealth by a small number of citizens raises doubts about the good use of that wealth for the inve...