Effects of Subcontracting on Firms in India's Informal Manufacturing Sector: An Empirical Investigation

Subcontracting occurs when a producer outsources a part of its production. We study the effect of subcontracting from a firm with buyer power on the profits of subcontracted upstream firms, and how profits vary on the basis of location of firm and owner's gender. Subcontracting is the treatment in our study and the dependent variable is the ratio of Gross Value Added to Sales adjusted or unadjusted for wages. The decision of a firm to subcontract or not is endogenous, so we cannot use OLS regression. Since we cannot have information on a firm being treated and non-treated at the same time, we use the Average Treatment Effect on Treated (ATET) model with Nearest Neighborhood Matching (NNM) approach, in which each treated firm is matched to an untreated firm which is its nearest neighbor on other parameters, to see the effect of treatment on outcome variable on the treated group had they been not treated. We find the existence of a subcontracting premium where being in a subcontracting relationship is beneficial for the informal sector firm, though the magnitude of this premium is small, and female-headed firms gain less from subcontracting. Subcontracted male-owned firms earn a higher premium but also pay more wages out of their total revenue to labor as compared to female-owned firms, perhaps because the latter are more likely to be Own Account Manufacturing Enterprises (OAME) which do not employ hired workers. Our results show that buyer power of the subcontracting firms is offset by the benefits they provide to the subcontracted firms, possibly in the form of assured demand and payments. Thus, policies favoring the informal sector firms need to incorporate the benefits of subcontracting by exploring alternative modes of distribution with lower distribution margins, such as cooperative societies or online platforms for example Amul, MEESHO. Policies should also focus on reducing the profit margin differential between male and female owned firms by formulating a proper channel using mass media to communicate credit information and updates.