Abstract
This article investigates how social security provision – a key determinant of formality – impacts on small and medium-sized firm performance in Viet Nam. Based on enterprise census data covering all registered firms from 2006 to 2011, the authors find that firms which increase their social security coverage by 10 per cent experience a revenue gain of 1.4–2.0 per cent per worker and a profit gain of up to 1.8 per cent, depending on the survival time of the firm. However, given the time lag between “investment” (in social security contributions) and returns (enhanced firm performance), specific policy measures such as initial social insurance subsidies for small firms could increase participation in mandatory schemes.