I analyze the implication of consumers' limited attention to quality differences on market outcomes and welfare. I model this limited attention to quality differences with a perception threshold: Consumers only perceive quality differences between goods that exceed the consumers' perception...

In this paper, unlike the conventional wisdom, we demonstrate that the relationship between the size of the market and number of firms would be non-monotonic. While moderate rise in the size would force the local firms to exit and only the foreign firm rules, substantial rise in the size would...

Especially in many online markets, consumers can readily observe prices, but may need to further inspect products to assess their suitability. We study the effects of product differentiation and search costs on competition and market outcomes in a tractable model of price-directed consumer...

This paper argues that the case of product differentiation of concentrated markets (i.e., innovation competition) is one where production per unit of profit of non-financial corporations is lower than in competitive mass production and profit share is not an increasing function of capacity...

In this article, we provide a novel measure of product differentiation by observing consumer search behavior directly. We track individual consumers in a price search engine and generate a measure of distance in product space, based on goods surveyed conjointly within individual search episodes....

Fortnite is the most successful video game in terms of revenues generated. Since it belongs to the 'free-to-play games', the company has to optimize the in-game-shop to generate revenues. Product dif- ferentiation is one possibility to optimize the profitability of the game. In this paper, we...

Is green consumerism beneficial to the environment and the economy? To shed light on this question, we study the political economy of environmental regulations in a model with neutral and green consumers where the latter derive some warm glow from buying a good of higher environmental quality...

Much significant research has been done to shed light on discrimination of females in, for example, labor markets. Less is known, in contrast, about the amount of discrimination in the virtual world of online gaming. In an early study, Castronova (2004) finds that female avatars receive about...

This article investigates the relationship between income inequality and firms' locations and product choices. Using detailed information on income at a regionally disaggregated level and individual data on Austrian restaurants, we demonstrate that firm conduct crucially depends on the...

This article investigates the relationship between income inequality and firms' locations and product choices. Using detailed information on income at a regionally disaggregated level and individual data on Austrian restaurants, we demonstrate that firm conduct crucially depends on the...

Non-governmental organizations (NGOs) are exerting growing pressure on firms to eliminate product components (such as palm oil) that are harmful to the environment (such as rainforests) or replace such components with NGO-certified sustainable components. Under which conditions does NGO pressure...

Is green consumerism beneficial to the environment and the economy? To shed light on this question, we study the political economy of environmental regulations in a model with neutral and green consumers where the latter derive some warm glow from buying a good of higher environmental quality...

The default assumption of standard economics is to treat preferences as exogenously 'given', consistent with one another, 'revealed' by past choices, and context independent. There has been increased interest recently (within behavioural economics) in the impact of inconsistent or irrational...

I analyze the implication of consumers' limited attention to quality differences on market outcomes and welfare. I model this limited attention to quality differences with a perception threshold: Consumers only perceive quality differences between goods that exceed the consumers' perception...

In this paper, unlike the conventional wisdom, we demonstrate that the relationship between the size of the market and number of firms would be non-monotonic. While moderate rise in the size would force the local firms to exit and only the foreign firm rules, substantial rise in the size would...

Since the push towards central clearing in derivatives markets after the global financial crisis, an open question has been how the development has affected competition. This paper models imperfect competition between dealers in derivatives markets. Two risk-neutral dealers offer derivatives to...

A striking pattern in transaction-level data is the concentration of international shipments in the hands of a few large firms. One common feature of dominating high-performance firms is that they produce multiple products and ship them to many destinations. Motivated by the emergence of highly...

The default assumption of standard economics is to treat preferences as exogenously ‘given’, consistent with one another, ‘revealed’ by past choices, and context independent. There has been increased interest recently (within behavioural economics) in the impact of inconsistent or...

This paper empirically assesses the impact of a discontinuous tax schedule on prices, markups and product assortment in the Brazilian automobile industry. To this end, I estimate a structural, equilibrium model of demand and supply for over a hundred different models and engine sizes of...

A consumer wants to buy one of three different products. An expert observes which of the three products is the best match for the consumer. Under linear prices a monopolistic expert may truthfully reveal, may partially reveal, and may not reveal at all her information. The outcome is...

This paper introduces finance or credit in the Dixit-Stiglitz-Krugman (DSK) model of international trade. It identifies mechanisms by which finance can affect the main results of the conventional model. The key results are as follows. Perfect credit market does not affect number of varieties or...

This paper investigates the effects of mergers on the product mix of multiproduct firms. Thus, we open the black box of post-merger efficiency improvements to reveal a new margin of adjustment along the product dimension. We analyze horizontal mergers in a theoretical model where oligopolistic...

A striking pattern in transaction-level data is the concentration of international shipments in the hands of a few large firms. One common feature of dominating high-performance firms is that they produce multiple products and ship them to many destinations. Motivated by the emergence of highly...

Abstract This is the fifth in a series of teaching notes on quality-differentiated demand. With an eye on accessibility to undergraduate econ majors, the focus here is on peak-load pricing and highway tolls. Once quality considerations are accounted for, a richer set of insights is derived to...

This paper investigates the effects of mergers on the product mix of multiproduct firms. Thus, we open the black box of post-merger efficiency improvements to reveal a new margin of adjustment along the product dimension. We analyze horizontal mergers in a theoretical model where oligopolistic...