Compliance of small firms with the value added tax : a study of the supply chain of small parts for buses in Columbia

Governments are coming under increasing pressure to augment their revenues to offset the social costs of globalization and ever-widening trade and capital liberalization. Unarguably, the most sustainable way to procure additional resources is taxation. In this context, one of the main challenges for developing countries is how to bring the informal sector into the tax net. Influential institutions such as the World Bank and the IMF see the VAT as the solution. In Colombia, a weak social contract makes citizens perceive taxes as burdens with a marginal contribution to the common good. Consequently, evasion is widespread. This thesis attempts to understand why some small firms evade the VAT and others do not. It revolves around the supply chain for small parts for buses of the informal transportation systems of Colombian cities. This sector slowly evolves-under growing liberalization and top-down formalization of urban transportation-towards higher formality (all firms are now registered and firm owners hold legal titles of their property and machinery). They are informal in that they have varying degrees of compliance with State regulations (most notably tax and labor). Thus, most firms in this study fall somewhere on the continuum between informality and formality.