Abstract
Income inequality has been rising in parallel with the economic liberalisation process in the former centrally planned economies. The opportunities for non‐agricultural income associated with the market liberalisation process in former centrally planned economies would seem to be important in determining inequality within the rural sector. This article reviews the trends in inequality in Viet Nam examining differential trends and hypothesised causes. Inequality is important because of its relationship to other factors in the evolution of the agricultural economy such as the incidence of poverty and the sustainability of emerging income sources. This article analyses income inequality based on data collected by the author in two Districts in coastal northern Viet Nam. The results demonstrate that non‐agricultural income sources, specifically aquaculture and wage and remittance, contribute more to present inequality than any other income source. Simulation shows that the emergence of aquaculture since the late 1980s has been driving the inequality increase in that period. Hence the analysis provides evidence that non‐agricultural income increases inequality even without asset concentration. This concentration of income is important in the north Viet Nam context since it is concurrent with present‐day land allocation and will affect the structure of future income growth.