In recent decades, advances in information and communication technology and falling trade barriers have led firms to retain within their boundaries and in their domestic economies only a subset of their production stages. A key decision facing firms worldwide is the extent of control to exert over the different segments of their production processes. We describe a property-rights model of firm boundary choices along the value chain that generalizes Antràs and Chor (2013). To assess the evidence, we construct firm-level measures of the upstreamness of integrated and non-integrated inputs by combining information on the production activities of firms operating in more than 100 countries with Input-Output tables. In line with the model's predictions, we find that whether a firm integrates upstream or downstream suppliers depends crucially on the elasticity of demand for its final product. Moreover, a firm's propensity to integrate a given stage of the value chain is shaped by the relative contractibility of the stages located upstream versus downstream from that stage, as well as by the firm's productivity. Our results suggest that contractual frictions play an important role in shaping the integration choices of firms around the world.

This paper examines firms' choice between serving a foreign market through exports or foreign direct investment (FDI). We begin by unveiling a new empirical regularity: using a unique dataset that allows us to study the dynamics of firms' export and FDI choices in individual destination markets, we show that the overwhelming majority of firms serve a foreign market via exports before establishing affiliates in that market. To explain this pattern, we develop a simple dynamic model of export and FDI choices, in which a firm can only discover its ability to earn profits in a foreign market once it starts serving it. We show that uncertainty can lead to a gradual internationalization process, whereby the firm tests the foreign market via exports, before engaging in FDI. Consistent with the model's predictions, we find that most firms start serving a foreign market through exports; in the first years following export entry, many firms drop out of the foreign market, others survive and expand as exporters, some establish foreign affiliates. We show that a firm's export experience in a foreign market increases its probability of FDI entry; this effect decreases over time and increases with foreign market uncertainty. Our analysis suggests that exports and FDI, although substitutes from a static perspective, may be complements over time, since the knowledge acquired through export experimentation can lead firms to start investing abroad.JEL classifications: F10, D21, F13.

Recent decades have witnessed a surge of trade in intermediate goods and a proliferation of free trade agreements (FTAs). FTAs use rules of origin (RoO) to distinguish goods originating from member countries from those originating from third countries. We focus on the North American Free Trade Agreement (NAFTA), the world’s largest FTA, and construct a unique dataset that allows us to map the input-output linkages in its RoO. Exploiting cross-product and cross-country variation in treatment over time, we show that NAFTA RoO led to a sizable reduction in imports of intermediate goods from third countries relative to NAFTA partners. (JEL F13, F15, F23, L14, O19)

In recent decades, technological progress in information and communication technology and falling trade barriers have led firms to retain within their boundaries and in their domestic economies only a subset of their production stages. A key decision facing firms worldwide is the extent of control to exert over the different segments of their production processes. Building on Antràs and Chor (2013), we describe a property-rights model of firm boundary choices along the value chain. To assess the evidence, we construct firm-level measures of the upstreamness of integrated and non-integrated inputs by combining information on the production activities of firms operating in more than 100 countries with Input-Output tables. In line with the model's predictions, we find that whether a firm integrates upstream or downstream suppliers depends crucially on the elasticity of demand for its final product. Moreover, a firm's propensity to integrate a given stage of the value chain is shaped by the relative contractibility of the stages located upstream versus downstream from that stage. Our results suggest that contractual frictions play an important role in shaping the integration choices of firms around the world.JEL classifications: F14, F23, D23, L20.