Other Economics Commons^™

Testing The Boundaries Of The Double Auction: The Effects Of Complete Information And Market Power, Erik O. Kimbrough

Economics Faculty Articles and Research

We report boundary experiments testing the robustness of price convergence in double auction markets for non-durable goods in which there is extreme earnings inequality at the competitive equilibrium (CE). Following up on a conjecture by Smith (1976a), we test whether the well-known equilibrating power of the double auction institution is robust to the presence of complete information about traders’ values and costs and the presence of symmetric market power. We find that complete information is insufficient to impede convergence to CE prices; however, introducing market power consistently causes prices to deviate from the CE, whether or not subjects possess complete …

Individualism, Collectivism, And Trade, Aidin Hajikhameneh, Erik O. Kimbrough

Economics Faculty Articles and Research

While economists recognize the important role of formal institutions in the promotion of trade, there is increasing agreement that institutions are typically endogenous to culture, making it difficult to disentangle their separate contributions. Lab experiments that assign institutions exogenously and measure and control individual cultural characteristics can allow for clean identification of the effects of institutions, conditional on culture, and help us understand the relationship between behavior and culture, under a given institutional framework. We focus on cultural tendencies toward individualism/collectivism, which social psychologists highlight as an important determinant of many behavioral differences across groups and people. We design an …

Poverty Mapping Using Convolutional Neural Networks Trained On High And Medium Resolution Satellite Images, With An Application In Mexico, Boris Babenko, Jonathan Hersh, David Newhouse, Anusha Ramakrishnan, Tom Swartz

Economics Faculty Articles and Research

Mapping the spatial distribution of poverty in developing countries remains an important and costly challenge. These “poverty maps” are key inputs for poverty targeting, public goods provision, political accountability, and impact evaluation, that are all the more important given the geographic dispersion of the remaining bottom billion severely poor individuals. In this paper we train Convolutional Neural Networks (CNNs) to estimate poverty directly from high and medium resolution satellite images. We use both Planet and Digital Globe imagery with spatial resolutions of 3-5 m2 and 50 cm2 respectively, covering all 2 million km2 of Mexico. Benchmark poverty estimates come from …

Coordination When There Are Restricted And Unrestricted Options, Shaun P. Hargreaves Heap, David Rojo Arjona, Robert Sugden

Economics Faculty Articles and Research

One might expect that, in pure coordination games, coordination would become less frequent as the number of options increases. Contrary to this expectation, we report an experiment which found more frequent coordination when the option set was unrestricted than when it was restricted. To try to explain this result, we develop a method for eliciting the general rules that subjects use to identify salient options in restricted and unrestricted sets. We find that each such rule, if used by all subjects, would generate greater coordination in restricted sets. However, subjects tend to apply different rules to restricted and unrestricted sets.

Impact Of Network Externality On End-User Piracy: Revisited, Sougata Poddar, Yuanzhu Lu

Economics Faculty Articles and Research

We revisit the issue whether a strong presence of network externality in the digital products market could be a reason for the copyright holders to allow piracy. We find that except under a limited circumstance this is not true in a framework that involves IPR protection and copyright holder's costly effort to prevent piracy. We further show that as the degree of network externality increases, the strategic piracy deterrence level of the copyright holder increases and the actual rate of piracy decreases.

Does Price Efficiency Increase With Trading Volume? Evidence Of Nonlinearity And Power Laws In Etfs, Gunduz Caginalp, Mark Desantis

Economics Faculty Articles and Research

Whether efficiency increases with increasing volume is an important issue that may illuminate trader strategies and distinguish between market theories. This relationship is tested using 124,236 daily observations comprising 68 large and liquid U.S. equity exchange traded funds (ETFs). ETFs have the advantage that efficiency can be measured in terms of the deviation between the trading price and the underlying net asset value that is reported each day. Our findings support the hypothesis that the relationship between volume and efficiency is nonlinear. Indeed, efficiency increases as volume increases from low to moderately high levels, but then decreases as volume increases …

Multiple Openings And Competitiveness Of Forward Markets: Experimental Evidence, José Luis Ferreira, Praveen Kujal, Stephen Rassenti

Economics Faculty Articles and Research

We test the competition enhancing effect of selling forward in experimental Cournot duopoly and quadropoly with multiple forward markets. We find that two forward periods yields competitive outcomes and that the results are very close to the predicted theoretical results for quantity setting duopolies and quadropolies. Our experiments lend strong support to the hypothesis that forward markets are competition enhancing. We then test a new market that allows for endogenously determined indefinitely many forward periods that only close when sellers coordinate on selling a zero amount in a forward market. We find that the outcomes under an endogenous close rule …

John Nash: A Personal Remembrance (Introduction To The John Forbes Nash Jr. Memorial Special Issue), Vernon Smith

Economics Faculty Articles and Research

In January of 2011, three years after his 80th birthday, Games and Economic Behavior published a special issue to honor John Nash. In their introductory note, the editors, Avinash Dixit, Ehud Kalai and Stephen Morris wrote: “We are delighted to have the privilege of coordinating this expression of the whole profession's admiration and appreciation of John Nash and his work, and look forward to a repeat in ten or even twenty years' time.”

This wish was sadly interrupted by tragedy. On their way back from the ceremony awarding John the Abel Prize in mathematics, John and his wife Alicia were …

Information Effects In Uniform Price Multi-Unit Dutch Auctions, Joy A. Buchanan, Steven Gjerstad, David Porter

Economics Faculty Articles and Research

We design a multi-unit descending-price (Dutch) auction mechanism that has applications for resource allocation and pricing problems. We address specific auction design choices by theoretically and experimentally determining optimal information disclosure along two dimensions. Bidders are either informed of the number of bidders in the auction, or know that it is one of two possible sizes; they also either know the number of units remaining for sale or are unaware of how many units have been taken by other bidders. We find that revealing group size decreases bids, and therefore revenue, if units remaining are not shown. When group size …

The Fair And Impartial Spectator, Vernon L. Smith

Economics Faculty Articles and Research

Adam Smith’s metaphor of the impartial spectator is an essential element in understanding his model of the maturation process whereby people learn to follow general rules that honor the human sentiments of gratitude and resentment in others. Through the impartial spectator human action, subject to error, is governed by self-command. Smith’s model is presented in the form of a series of propositions.

Building A Better Model: Variable Selection To Predict Poverty In Pakistan And Sri Lanka, Marium Afzal, Jonathan Hersh, David Newhouse

Economics Faculty Articles and Research

Numerous studies have developed models to predict poverty, but surprisingly few have rigorously examined different approaches to developing prediction models. This paper applies out of sample validation techniques to household data from Pakistan and Sri Lanka, to compare the accuracy of regional poverty predictions from models derived using manual selection, stepwise regression, and Lasso-based procedures. It also examines how much incorporating publically available satellite data into the model improves its accuracy. The five main findings are that: 1) Lasso tends to outperform both discretionary and stepwise models in Pakistan, where the set of potential predictors is large. 2) Lasso and …

Cost Share Adjustment Processes For Cooperative Group Decisions About Shared Goods: A Design Approach, Edna T. Loehman, Richard Kiser, Stephen Rassenti

Economics Faculty Articles and Research

For group decision about shared goods, the nature of the shared good and how its cost is to be shared among group members must be determined. Complexity arises from heterogeneity in preferences and endowments and nonlinear cost. To facilitate group decision, this paper proposes special type of group decision support system, a cost share adjustment process (CSAP), in which cost shares are adjusted iteratively via algorithmic rules until unanimity is reached, ideally producing a socially optimal, cost feasible, and fair outcome. In contrast to public good literature, our designs apply for situations of nonlinear cost, with economies of scale and …

How Portable Is Level-0 Behavior? A Test Of Level-K Theory In Games With Non-Neutral Frames, Shaun Hargreaves Heap, David Rojo Arjona, Robert Sugden

Economics Faculty Articles and Research

We test the portability of level‐0 assumptions in level‐k theory in an experimental investigation of behavior in Coordination, Discoordination, and Hide and Seek games with common, non‐neutral frames. Assuming that level‐0 behavior depends only on the frame, we derive hypotheses that are independent of prior assumptions about salience. Those hypotheses are not confirmed. Our findings contrast with previous research which has fitted parameterized level‐k models to Hide and Seek data. We show that, as a criterion of successful explanation, the existence of a plausible model that replicates the main patterns in these data has a high probability of …

Historical Health Conditions In Major Us Cities: The Hue Data Set, Carlos Villareal, Brian Bettenhausen, Eric Hanss, Jonathan Hersh

Economics Faculty Articles and Research

The Historical Urban Ecological data set is a new resource detailing health and environmental conditions within seven major U.S. cities during the study period from 1830 to 1930. Researchers collected and digitized ward-level data from annual reports of municipal departments that detail the epidemiological, economic, and demographic conditions within each city. They then drafted new geographic information system data to link the tabular records to ward geographies. These data provide a new foundation to revisit questions surrounding the urban mortality transition and the growth of U.S. cities.

Understanding The Distributional Impact Of Long-Run Inflation, Gabriele Camera, Yili Chen

Economics Faculty Articles and Research

The impact of fully anticipated inflation is systematically studied in heterogeneous agent economies with an endogenous labor supply and portfolio choices. In stationary equilibrium, inflation nonlinearly alters the endogenous distributions of income, wealth, and consumption. Small departures from zero inflation have the strongest impact. Three features determine how inflation impacts distributions and welfare: financial structure, shock persistence, and labor supply elasticity. When agents can self-insure only with money, inflation reduces wealth inequality but may raise consumption inequality. Otherwise, inflation reduces consumption inequality but may raise wealth inequality. Given persistent shocks and an inelastic labor supply, inflation may raise average welfare. …

Do Market Incentives Crowd Out Charitable Giving?, Cary Deck, Erik O. Kimbrough

Economics Faculty Articles and Research

Donations and volunteerism can be conceived as market transactions with a zero explicit price. However, evidence suggests people may not view zero as just another price when it comes to pro-social behavior. Thus, while markets might be expected to increase the supply of assets available to those in need, some worry such financial incentives will crowd out altruistic giving. This paper reports laboratory experiments directly investigating the degree to which market incentives crowd out large, discrete charitable donations in a setting related to deceased organ donation. The results suggest markets increase the supply of assets available to those in need. …

Accommodation Or Deterrence In The Face Of Commercial Piracy: The Impact Of Intellectual Property Rights (Ipr) Protections, Yuanzhu Lu, Sougata Poddar

Economics Faculty Articles and Research

In this paper, we address the issue of illegal copying or counterfeiting of the original product and Intellectual Property Rights (IPR) protections. The original product developer makes costly investment to deter piracy in a given regime of IPR protection. In the presence of a commercial pirate, we find that it is profitable for the original producer to accommodate the pirate when there is weak IPR protection, and deter when the IPR protection is strong. However, in the comparative statics analysis, we find that there is a non-monotonic relationship between the optimal level of deterrence (chosen by the original producer) and …

Sweet Diversity: Colonial Goods And The Welfare Gains From Trade After 1492, Jonathan Hersh, Hans-Joachim Voth

Economics Faculty Articles and Research

When did overseas trade start to matter for living standards? Traditional real-wage indices suggest that living standards in Europe stagnated before 1800. In this paper, we argue that welfare rose substantially, but surreptitiously, because of an influx of new goods as a result of overseas trade. Colonial luxuries such as tea, coffee, and sugar transformed European diets after the discovery of America and the rounding of the Cape of Good Hope. These goods became household items in many countries by the end of the 18th century. We use three different methods to calculate welfare gains based on price data and …

Product Innovation And Stability Of Collusion, Sougata Poddar, Bibhas Saha

Economics Faculty Articles and Research

We study the nature of market competition in relation to stability of collusion in the infinitely repeated play of a twostage game of product innovation and market competition, and show that cooperation in giving R&D efforts is more easily sustained when firms compete in quantity than in price.

Public Spending On Education And The Incentives For Student Achievement, William Blankenau, Gabriele Camera

Economics Faculty Articles and Research

We build a model where homogeneous workers can accumulate human capital by investing in education. Schools combine public resources and individual effort to generate productive skills. If skills are imperfectly compensated, then in equilibrium students may under-invest in effort. We examine the effect on human capital accumulation of three basic education finance policies. Increased tuition subsidies may not be beneficial because they increase enrollment but they may lower the incentives for student achievement, hence the skill level. Policies directed at enhancing the productivity of education or making degrees more informative are more successful at improving educational outcomes.

Another Example Of A Credit System That Coexists With Money, Gabriele Camera, Yiting Li

Economics Faculty Articles and Research

We study an economy in which exchange occurs pairwise, there is no commitment, and anonymous agents choose between random monetary trade or deterministic credit trade. To accomplish the latter, agents can exploit a costly technology that allows limited recordkeeping and enforcement. An equilibrium with money and credit is shown to exist if the cost of using the technology is sufficiently small. Anonymity, record-keeping and enforcement limitations also permit some incidence of default, in equilibrium.

On Patent Licensing In Spatial Competition, Sougata Poddar, Uday Bhanu Sinha

Economics Faculty Articles and Research

We consider the issue of patent licensing in a linear city framework where firms are located at the end points of the city and compete in price. We consider three types of licensing arrangements, namely, auction, fixed fee, royalty; and focus on the optimal licensing strategy of an outsider patentee as well as an insider patentee. Contrary to the findings in the existing literature, first we show offering royalty is the best for the patentee when the patentee is an outsider for both drastic and non-drastic innovation. For insider patentee, offering no-license is the best when the innovation is drastic, …

The Distribution Of Money And Prices In An Equilibrium With Lotteries, Aleksander Berentsen, Gabriele Camera, Christopher Waller

Economics Faculty Articles and Research

We construct a tractable ‘fundamental’ model of money with equilibrium heterogeneity in money balances and prices. We do so by considering randomized monetary trades in a standard search-theoretic model of money where agents can hold multiple units of indivisible ‘tokens’ and can offer lotteries on monetary transfers. By studying a simple trading pattern, we can analytically characterize the monetary distribution. Interestingly, such distributions match those observed in numerically simulated economies with fully divisible money and price heterogeneity.

Rjvs In Product Innovation And Cartel Stability, Luca Lambertini, Sougata Poddar, Dan Sasaki

Economics Faculty Articles and Research

We characterise the interplay between firms' decision in product development undertaken through a research joing venture (RJV), and the nature of their ensuing market behaviour. Participant firms in an RJV face a trade-off between saving the costs of product innovation by developing similar products to one another, e.g. by sharing most of the basic components of their products, and investing higher initial efforts in product innovation in order to develop more distinct products. We prove that the more the fims' products are distinct and thus less substitutable, the easier their collusion is to sustain in the marketing supergame, either in …

Excess Capacity: A Note, Sougata Poddar

Economics Faculty Articles and Research

In a two period model of strategic entry deterrence where the incumbent firm moves before the entrant by installing capacity for production, Dixit (1980) argued that in a (perfect) equilibrium excess capacity would not be observed, contradicting Spence's (1977) result on the same issue. In this note, we show that Dixit may not always remain true when we allow for demand uncertainty.

Research Joint Ventures, Product Differentiation, And Price Collusion, Luca Lambertini, Sougata Poddar, Dan Sasaki

Economics Faculty Articles and Research

We investigate the interplay between firms’ decisions in product development, either joint or independent, and their ensuing repeated pricing, either collusive or Bertrand–Nash. A joint venture develops a single product, whereas independent ventures develop their respective products which can be differentiated. We prove that joint product development and the resulting lack of horizontal product differentiation may destabilise collusion, whilst firms’ R&D decisions have no bearings on collusive sustainability if differentiation is vertical. We also discover the non-monotone dependence of firms’ venture decisions at the development stage upon their time preferences, as well as upon consumers’ willingness to pay.

Standardization And The Stability Of Collusion, Luca Lambertini, Sougata Poddar, Dan Sasaki

Economics Faculty Articles and Research

We characterize the interplay between firms' decision in terms of product standardization and the nature of their ensuing market behaviour. We prove the existence of a non-monotone relationship between firms' decision at the product stage and their intertemporal preferences.

Network Structure And Entry In The Deregulated Airline Industry, Joseph Berechman, Sougata Poddar, Oz Shy

Economics Faculty Articles and Research

We explore how an incumbent airline firm structures its route network under the threat of entry caused by deregulation. We show that entry induces the incumbent firm to strategically alter its flight operating network from a fully connected network (FC) to a hub-and-spoke network (HS). While most of the literature always assumed that the use of of HS network is primarily for the purpose of cost reduction, we show that hub-and-spoke operation can be used as a strategic device by the incumbent firm when it faces a threat of entry in its operating zone.

Demand Fluctuations And Capacity Utilization Under Duopoly, J. J. Gabszewicz, Sougata Poddar

Economics Faculty Articles and Research

This paper studies the impact of uncertain demand on firms' capacity decisions when they operate in an oligopolistic environment. We define a two-stage game where firms choose capacity in the first stage without knowing which state of nature is going to realize, and output levels in the second, knowing which state is realized. We prove the existence of a symmetric subgame perfect equilibrium at which firms are in excess capacity compared with the capacity they would choose in the Cournot certainty equivalent game.