Income inequality in terms of a Gini coefficient: a Kaleckian perspective

This study presents a theoretical framework that connects functional income distribution and personal income distribution from the Kaleckian perspective and investigates the effects of changes in mark-up rate and interest rate on income inequality in terms of the Gini coefficient. The results demonstrate that a rise in the mark-up rate with weak bargaining power of workers raises the Gini coefficient irrespective of a profit-led or wage-led demand regime. The analyses also demonstrate that a decline in the interest rate negatively affects the Gini coefficient if and only if the bargaining power of workers is sufficiently strong.