This paper reexamines the trade creation effects of migration using a large sample of 180 countries from 1995 to 2023. We estimate a structural gravity model of bilateral trade augmented with migration stocks, investigating whether immigration to OECD countries relates to the extensive and...

Siniora Food Industries of Palestine was facing a strategic dilemma. They had sold packaged meats for over 100 years in a challenging and risky environment. Siniora had carved a path of growth, expansion, and development, showcasing the power of endurance. Initially sold by local shopkeepers,...

In modern information markets, buyers routinely combine signals from multiple sellers. We develop a model of ``portfolio competition'' to analyze this distinctive feature. We show that the combinability of information overturns standard oligopoly intuition. Unlike traditional markets,...

This paper examines firms’ market entry strategies for quality-differentiated goods, focusing on both initial and subsequent product-level entry decisions. Using a theoretical framework incorporating nonhomothetic preferences, we show that premium products are more likely to enter wealthier...

Over the last century, the passenger airline industry has undergone a series of transformations, with Lufthansa being a key player not only in Europe, but also worldwide. This case study traces Lufthansa's development, from its origins up until its current status, and outlines its expansion by...

This paper examines sectoral growth patterns across Chinese provinces during the country's economic takeoff in the early 2000s, following major policy reforms including trade liberalization, infrastructure expansion, business climate improvements, and relaxed rural-to-urban migration...

Limited competition in public procurement remains a persistent concern, yet the reasons for low participation are not well understood. We conduct a conjoint survey experiment that targets both potential and actual bidders in Finland. We present real firms with hypothetical tender scenarios,...

We study how the end of the quota system for textiles and clothing products in the American and European markets on January 1, 2005, affected China’s exports to third countries, where policy was unchanged. Using a difference-in-differences approach, we find that the number of Chinese firms...

I study how third-party firms respond when a platform owner enters its own marketplace, analyzing Apple's entries into App Store submarkets from 2016-2021. Using text embeddings to define markets and a staggered difference-in-differences design, I find that Apple's entry deters new competitors...

Conventional wisdom suggests that information transparency about prices lowers prices and markups by intensifying seller competition. However, in markets with costly buyer entry, price transparency also draws in more buyers, increasing demand-side competition and putting upward pressure on...

Firms often choose with whom to compete and how similar or how different their products should be relative to those of their rivals. This paper investigates this issue in the app economy by studying the determinants of mobile app success. We leverage natural language processing and unsupervised...

This paper studies how commission rates affect app entry across platforms. We examine an increase in Android game commission rate from 30% to 50% in China in 2014 and its impact on Android and iOS app stores, separately, in a difference-in-differences framework. We find a direct negative entry...

We study whether firm-level heterogeneity helps explain U.S. macroeconomic fluctuations in response to aggregate shocks. Using quarterly Compustat and CRSP data from 1986 to 2025, we construct two revenue-based statistics inspired by the Melitz (2003) model: the average firm and the marginal...

We study the economic consequences of anti-loss trafficking rules, which disallow the use of loss carry-forwards as tax shield after a substantial ownership change. Using staggered changes to these rules, we find that limiting the transfer of tax losses reduces the number of M&As with...

We examine the incentives and implications of supplier encroachment, when final good produc-tion requires the use of multiple complementary inputs and the entry of a supplier into the final good market gives rise to mutual outsourcing of inputs between the encroaching supplier and the incumbent....

This Handbook is intended to act as a reference for those agri-food producers planning for, or in the process of entering, the Vietnamese market. This Handbook provides step-by-step guides on entering the agri-food market in Vietnam including relevant information such as analysis of the...

We consider a market in which a platform hosts third-party monopolistic complementors. Users are segmented into single-use and multi-use consumers, and services exhibit network externalities. In the agency model, the presence of multi-use consumers leads complementors to set inefficiently high...

This paper characterizes the short- and long-run Cournot equilibrium with heterogeneous firms and stochastic technological change. In our model, firms have different technologies with heterogeneous fixed and variable costs and various degrees of markups. In a framework with homogeneous firms,...

Policies supporting small businesses are popular among policymakers but often criticised by economists for their potential to distort the economy. This paper provides a comprehensive evaluation of a unique policy that subsidises the first employee. Empirically, we find that the policy led to a...

This paper studies the interaction between the decrease in the gender pay gap and the stagnation in the careers of younger workers, analyzing data from the United States, Italy, Canada, and the United Kingdom. Our findings highlight the importance of labor-market entry to understand the...

Many auctions and procurement contests entail nontrivial bidding costs, which makes the bidders’ participation decisions endogenous to the auction design. We analyze the effect of different auction rules on potential bidders’ incentives to participate. We focus on first-price auctions with...