Transaction-level quantity discounts are a pervasive feature of US trade, shaping both price variation and tariff incidence. Using administrative microdata, we show that these discounts reflect transaction-level scale economies rather than market power. Accounting for these micro-level economies...

Using barcode-level data from the NielsenIQ Homescan Consumer Panel, we study how income inequality affects the prices of identical goods across US counties. We find that higher inequality reduces prices for products with low market shares but increases prices for products with high market...

The relationship between firm markups and inflation remains a topic of contention. Empirical findings suggest that many firms were able to maintain or increase their markups and profits amidst the recent wide-ranging cost shocks. This phenomenon, often referred to as sellers' inflation, raises...

This paper derives a closed-form expression linking aggregate markups on im- ported inputs to concentration in a model of firm-to-firm trade with two-sided market power. Our theory extends standard oligopoly insights in two dimensions. First, it reveals that markups increase with exporter...

We analyse UK markups and profit margins for the pandemic period and its aftermath using unconsolidated balance sheets of non-financial corporations for both listed and unlisted firms. The markup increases by 14.7% between 2014 and 2022, exceeding any previously documented growth rate for UK...

We study the determination of market power at the firm and industry levels when heterogeneous firms compete for sales to ex ante homogeneous buyers in a market with both directed and random search and free entry of firms that differ in productivity. Search and the distribution of productivity...

The study examines the influence of markups on the export decisions and subsequent export intensity of firms within the Hungarian wine sector. Additionally, we evaluate the impact of entering and sustaining a presence in export markets on firms' markups and compare the markup levels between...

We develop a macroeconomic agent-based model to study the role of demand and supply factors in determining inflation dynamics. Local interactions of heterogeneous firms and households in the labor and goods markets characterize the model. Asymmetric information implies that firm selection is...

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,...

Research about trade liberalization's impact on markups has focused on manufacturing due to data availability considerations. How do these effects vary across sectors? Which industries become more and less competitive as trade barriers are eliminated? We leverage firm-level tax records from the...

Using data from the Current Population Survey (CPS) for 1994-2023, we show that the union wage mark-up for immigrants averages about 0.1 log points, 0.04 log-points less than that for natives. Therefore, unionization is less beneficial for immigrants than natives in the United States. The...

We study the determination of market power at the firm and industry levels when heterogeneous firms compete for sales to ex ante homogeneous buyers in a market with both directed and random search and free entry of firms that differ in productivity. Search and the distribution of productivity...

This paper examines the effect of green investments on market power. I measure the market power as markup following the method provided in De Loecker and Warzynski (2012). For green investments, I consider specifically the investments of firms in energy efficient technologies, both as the binary...

The functioning of the banking sector is key for economic growth. In this paper, we first gather banks' balance sheet monthly regulatory information in a consistent manner for seven Latin American countries. Second, we estimate lending markups and deposits markdowns in each country over time....

This paper examines the relationship between wages and market power at the firm level. We derive firm-specific measures of labor market power and present a natural decomposition of wage changes into shifts in labor market power and labor productivity. Our findings indicate that 50-60 percent of...

We document how the interaction of supply chain pressures, elevated household inflation expectations, and firm pricing power contributed to the pandemic-era surge in consumer price inflation in the euro area. Initially, supply chain disruptions raised inflation, particularly in manufacturing,...

This article bridges monopoly, monopsony, and countervailing power theories to analyze their welfare implications in a vertical supply chain. We develop a bilateral monopoly model with bargaining that accommodates upstream monopsony and downstream monopoly power. In equilibrium, the ''short-side...

This paper derives a closed-form expression linking aggregate markups on imported inputs to concentration in a model of firm-to-firm trade with two-sided market power. Our theory extends standard oligopoly insights in two dimensions. First, it reveals that markups increase with exporter...

This article bridges monopoly, monopsony, and countervailing power theories to analyze their welfare implications in a vertical supply chain. We develop a bilateral monopoly model with bargaining that accommodates upstream monopsony and downstream monopoly power. In equilibrium, the...

Discussions on "profit inflation" are mired in conceptual unclarities, definitional idiosyncrasies and data problems. This article attempts to bring conceptual clarity to the debate on profit inflation, defining profit inflation strictly as an increase in the gross output price that is caused by...