We study how liberalization and competition affect firms’ output and product scope depending on management practices. In a model of multi-product firms, we show that firms with better management practices specialize in fewer products with lower marginal costs. The model predicts that, under...

This paper reveals a new determinant of wage markdowns at the firm level, namely, the product scope. Using matched employer-employee data on Danish manufacturing firms, we document a negative elasticity between wages and firm scope, which is of a similar magnitude but opposite sign as the...

This paper reveals a new determinant of wage markdowns at the firm level, namely, the product scope. Using matched employer-employee data on Danish manufacturing firms, we document a negative elasticity between wages and firm scope, which is of a similar magnitude but opposite sign as the...

We characterize Nash equilibria in multi-product markets in which producers commit to vectors of supply functions contingent on all prices. The framework accommodates (dis)economies of scope in production, and goods may be substitutes or complements in demand. We show that equilibrium...

This paper introduces a novel ratio-based framework for analyzing how consumer heterogeneity translates into product differentiation in vertically structured monopoly markets. We consider a monopolist facing a continuum of consumers and a strictly convex production cost function and identify...

Background: Managing multiproduct pipeline systems is a complex task of critical importance in the petroleum industry. Experts frequently rely on simulation tools to design and validate pumping operation schedules. However, existing tools are often problem-specific and too slow to be effectively...

This paper incorporates non-homothetic preferences and the product quality ladder assumption into a model of heterogeneous multi-product firms from the perspective of scale and quality to investigate the differential impact of domestic demand upgrading on firm resource reallocation and export...

Based on the sufficient statistics approach developed by Huang and Ottaviano (2024), we show how the state of technology of European industries relative to the rest of the world can be empirically assessed in a way that is simple in terms of computation, parsimonious in terms of data...

Based on the sufficient statistics approach developed by Huang and Ottaviano (2024), we show how the state of technology of European industries relative to the rest of the world can be empirically assessed in a way that is simple in terms of computation, parsimonious in terms of data...

I would like to thank Hong and Luparello (2024) for their effort in replicating, as well as partially extending, the results in Orr (2022). This replication report makes what I believe to be three key points: 1. The replication package of Orr (2022) is computationally reproducible (up to two...

Climate change is one of the pressing issues of our time, and carbon emissions caused by industrial production are among its most important drivers. This paper analyses how multi-product firms adjust to an increase in the cost of emissions (e.g. due to the introduction of emissions pricing) in...

We propose a new model of multi-product firms in international trade, where firms choose their product mix based on the products’ attractiveness and endogenous competition. The model is motivated by two novel stylized facts using Danish manufacturing data, which demonstrate the importance of...

We study how increased import competition affects the evolution of productivity in a small open economy. We use a production survey of Belgian firms where we observe quarterly firm-product data at the 8-digit level on value and quantities sold together with firm-level labor, capital, and...

I analyze a model of directed search in which a consumer inspects a finite number of products sharing attributes with each others. The consumer discovers her valuation for the attributes of the inspected products and adapts her search strategy based on what she has learned. The consumer...

This paper investigates the bilateral impacts of antidumping measures, beyond directly targeted products and exporting firms. It focuses on the country whose exports are most exposed to such measures, China. Product-level analysis shows that export volumes are negatively affected for products...

This paper aims to understand the pathways by which exporters become entities that sell multiple goods to multiple customers. To understand firms' export strategies, we analyse new trade flows - new seller-buyer-product combinations - of individual exporters. Our first finding highlights that...

This paper aims to understand the pathways by which exporters become entities that sell multiple goods to multiple customers. To understand firms’ export strategies, we analyse new trade flows – new seller-buyer-product combinations – of individual exporters. Our first finding highlights...

Which products are potentially produced together? When demand for a product increases, which firms will supply it? Using multi-product production patterns within and across firms, we recover a continuous cost-based distance between firms and unproduced products. Higher product distance implies...

I study a vertically differentiated product market intermediated by a monopoly platform. A monopoly seller offers a low- and a high-quality product to consumers with heterogenous preferences to purchase through the platform rather than directly from the seller. Absent any restrictions imposed by...

This paper proposes a novel method to estimate productivity and quality at the firm-product level, together with transformation function and demand parameters. The method relies on firm optimization conditions to obtain a one-to-one mapping between observed data and unobserved productivity and...

The past few decades have witnessed a slowdown in productivity growth in many advanced economies, including Finland. Against this backdrop, this study investigates product switching in Finnish manufacturing firms during the period of 2009-2019. The findings indicate a growing trend towards...

Products produced by a multiproduct firm can be linked through demand linkages or supply linkages. On the demand side, changes in the price of one product can affect the demand for a firm's other products through shifts in consumer expenditures. This is commonly referred to as the...

Despite the various industrial applications integrating inbound transportation, production, and inventory, only single-product studies have been conducted addressing the related production and inventory routing problems simultaneously. To meet the optimization requirements of many-to-one...

We investigate the impact of product market competition on firms’ automation investments. We use a rich combination of micro-data on Portuguese exporters and exploit a novel source of variation in the degree of competition they face – a tariff liberalization between the European Union and...

Whether there exists a dual-product market in China. In fact, there are obvious distribution differences between low-end products and high-end products, which are dominated by low-end products in a "pyramid" shape. This paper explores the resource allocation in multi-product firms based on the...