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Saul Lach, Zvika Neeman and Mark Schankerman
We study how to design an optimal government loan program for risky R&D projects with positive externalities. With adverse selection, the optimal government contract involves a high interest rate but nearly zero co-finan...Read more...
26 August 2020
Mark Schankerman
This paper studies the causal impact of patents on subsequent innovation by the patent holder. The analysis is based on court invalidation of patents by the U.S. Court of Appeals for the Federal Circuit, and exploits t...Read more...
27 November 2015
Alberto Galasso and Mark Schankerman
Cumulative innovation is central to economic growth. Do patent rights facilitate or impede such follow-on innovation? This paper studies the effect of removing patent protection through court invalidation on the subseque...Read more...
1 August 2015
Manolis Galenianos and Alessandro Gavazza
We develop a theoretical framework to study illicit drugs markets and we estimate it using data on purchases of crack cocaine. Buyers are searching for high-quality drugs, but they determine drugs? quality (i.e., their p...Read more...
8 December 2014
Marcia M Schafgans and Joachim Stibora
We develop a general equilibrium model of multiproduct fi?rms with quality differentiated goods. Households are characterized by an heterogeneous taste for the differentiated good and their income level. The use of non-h...Read more...
1 July 2014
Sharon Belenzon and Mark Schankerman
Using new data on citations to university patents and scientific publications, and measures of distance based on Google maps, we study how geography affects university knowledge diffusion. We show that knowledge flows fr...Read more...
August 2010
Pasquale Schiraldi
This paper specifies and estimates a structural dynamic model of consumer demand for new and used durable goods. Its primary contribution is to provide an explicit estimation procedure for transaction costs, which are cr...Read more...
June 2010
The focus of the present work is to study the impact of the second-hand market the collusive behavior. I analyze firms? preferences for having an active second-hand market and whether policies (i.e. leasing policy, buy-b...Read more...
September 2009
This paper studies the role of intrinsic motivation, reputation and reciprocity in driving open source software innovation. We exploit the observed pattern of contributions - the 'revealed preference' of developers - to ...Read more...
October 2008
We study how fragmentation of patent rights (`patent thickets?) and the formation of the Court of Appeal for the Federal Circuit (CAFC) affected the duration of patent disputes, and thus the speed of technology diffusion...Read more...
August 2008
Alberto Galasso
In many industries broad cross-license agreements are considered a useful method to obtain freedom to operate and to avoid patent litigation. In this paper I study the previously neglected dynamic trade-off between litig...Read more...
July 2007
We study the impact of incentive pay, local development objectives and government constraints on university licensing performance. We develop and test a simple contracting model of technology licensing offices, using new...Read more...
February 2007
Michael Noel and Mark Schankerman
Strategic patenting is widely believed to raise the costs of innovating, especially in industries characterised by cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market...Read more...
June 2006
Luca Colombo, Paola Labrecciosa and Patrick Paul Walsh
Theory predicts that optimal effective corporation tax rates will be negatively related to industry specific sunk costs, and hence industry concentration. Governments should tax industries with monopolistic power softly....Read more...
February 2006
Daniel Trefler
The Canada-U.S. Free Trade Agreement (FTA) provides a unique window onto the effects of a reciprocal trade agreement on an industrialized economy (Canada). For industries that experienced the deepest Canadian tariff cuts...Read more...
January 2006
Nicholas Bloom, Mark Schankerman and John Van Reenen
Support for many R&D and technology policies relies on empirical evidence that R&D ?spills over? between firms. But there are two countervailing R&D spillovers: positive effects from technology spillovers and negative ef...Read more...
January 2005
Christos Genakos
This paper examines how information on the purchasing patterns of different customer segments can be used to more accurately evaluate the economic impact of mergers. Using a detailed dataset for the leading manufacturers...Read more...
December 2004
Alberto Salvo
This paper demonstrates that when an industry faces potential entry and this threat of entry constrains pre-entry prices, cost and conduct are not identified from the comparative statics of equilibrium. In such a setting...Read more...
October 2004
This paper seeks to uncover why the pattern of equilibria in sequential merger games of a certain type is similar across a fairly wide class of models much studied in the literature. By developing general conditions char...Read more...
April 2004
Maria Luisa Mancusi
This paper provides an empirical assessment of the effect of national and international knowledge spillovers on innovation at a finely defined sectoral level for six major industrialised countries over the period 1981-1...Read more...
March 2004
Saul Lach and Mark Schankerman
We show that economic incentives affect the commercial value of inventions generated in universities. Using data for 102 U.S. universities during the period 1991-1999, we find that universities which give higher royalty ...Read more...
John Sutton
The aim of this study is to examine the extent to which Chinese and Indian auto-component producers have advanced towards international best practice levels of productivity and quality. The report is based on a survey of...Read more...
February 2004
This paper introduces a novel analysis of the classic ?persistence of leadership? question, and applies it to a newly constructed dataset for Japanese manufacturing. The analysis rests on an appeal to an empirical ?scali...Read more...
January 2004
Jean O. Lanjouw and Mark Schankerman
We analyse the determinants of the decline in measured research productivity (the patent/R&D ratio)using panel data on manufacturing firms in the U.S. for the period 1980-93. We focus on three factors: the level of deman...Read more...
December 2002
Patrick Paul Walsh and Ciara Whelan
Using brand-level retail data, the firm size distribution in carbonated soft drinks is shown to be an outcome of the degree to which firms have placed brands effectively (store coverage) across vertical (flavour, packagi...Read more...
August 2002
We study the determinants of patent suits and their outcomes over the period 1978-1999 by linking detailed information from the U.S. patent office, the federal court system, and industry sources. The probability of being...Read more...
December 2001
Maria Letizia Giorgetti
In this paper, I illustrate the additional information that can be prodivided in estimating the lower bound (Sutton 1991, 1998) by using quantile regression. Quantile regression allows us to invesigate the influence of o...Read more...
September 2001
What economic mechanisms underlie the polarization of the world economy into the 'high wage' industrialized countries and the less developed 'low wage' countries? Should we expect the two groups to converge over time, or...Read more...
Certain recently reported statistical regularities relating to the dispersion of firms' growth rates have begun to attract attention among IO economists. These relationships take the form of power law or scaling relation...Read more...
Jian Tong
Some recent empirical findings suggest that there are intrinsic links between the statistical regularities regarding cohort survival patterns, the persistence of firm turnover, and shakeout during an industry life-cycle....Read more...
November 2000
Luigi Buzzacchi and Tommaso Valletti
This paper tests the presence of multiple independent submarkets in the Italian motor insurance industry. Independence is motivated by administrative boundaries among provinces and by further locational reasons. We find ...Read more...
September 1999
This paper studies the role of quality competition in endogenous growth and institutional factors which can affect growth through affecting quality competition. The R&D-based growth literature as it stands attributes the...Read more...
Volker Nocke
The existence of a negative relationship between cartel stability and the level of excess capacity in an industry has for a long time been the dominant view in the traditional IO literature. Recent supergame-theoretic co...Read more...
July 1999
This paper analyses a dynamic game of investment in R&D or advertising, where current investments change future market conditions. It investigates whether underinvestment can be supported in equilibrium by the threat of ...Read more...
February 1998
This paper investigates the characteristics of litigated patents by combining for the first time information about patent case filings from the U.S. district courts and detailed data from the U.S. Patents and Trademark O...Read more...
January 1998
Alison Oldale
This paper presents a model of competition between operators on urban local bus routes in which passengers always board the first bus to arrive, and it is costly to revise timetables. The model predicts that timetables a...Read more...
George Symeonidis
This paper examines the impact of firms' conduct on market structure. It studies the evolution of concentration in UK manufacturing following the abolition of cartels using a theoretical framework based on Sutton's theor...Read more...
June 1997
This paper examines the impact of price competition on advertising/R&D expenditure and market structure. General theoretical results are derived which restrict the space of possible outcomes regarding the behaviour of co...Read more...
Magda Bianco
This paper addresses the questions of the effects of diversification strategies on firms' profitability. Empirical analyses do not seem to confirm the hypothesis that diversification is the optimal response to the presen...Read more...
March 1997
This paper reviews the recent literature on game-theoretic models of market structure and their empirical implementation....Read more...
October 1996
This paper traces the time series (?Growth of Firms?) tradition in the study of market structure and looks at how recent studies on entry and the size distribution of firms have modified thinking in this area....Read more...
Michael A. Raith
The conventional view that product heterogeneity limits the scope for collusion among oligolpolists has been challenged in recent theoretical work. This paper provides an argument in support of the conventional view by e...Read more...
Francesca Cornelli and Mark Schankerman
When firms have different R&D productivities, it may be welfare increasing to differentiate patent lives across inventions. The reason is that the uniform patent life provides excessive incentives to do R&D to the low pr...Read more...
January 1996
This paper proposes an equilibrium concept for a class of games in which players make irreversible costly decisions; these games have been widely used in the recent I.O. literature. The equilibrium concept is defined, no...Read more...
December 1995
This paper specifies and estimates a production function for the airline industry, identifying firms? network characteristics and efficiency as the main determinants of their productivity. The application of this analysi...Read more...
This paper examines the evolution of a skew distribution of firm sizes from the viewpoint of the ?Bounds? approach to market structure. It confines attention to the role played by non-strategic factors (statistical indep...Read more...
Pedro L Marin
This paper develops an empirical model of entry to analyze the effect of previous regulation on European airlines? post-liberalization profits. The author distinguishes between European flag carriers, which are hightly r...Read more...
The paper specifies and estimates a production function for the airline industry, identifying firms' network characteristics and efficiency as the main determinants of their productivity. The application of this analysis...Read more...
Maija Halonen
This paper examines integration decisions of successive duopolists. It is shown that qualitatively the same pattern of integration emerges whether there is Cournot or Bertrand competition in the input market. The degree ...Read more...
July 1994
Jean O. Lanjouw
This paper investigates the effect of the threat and occurrence of patent litigation on the private value of patent protection. Potential challenges are introduced into a renewal model as a factor in patentee decisions a...Read more...
July 1992
This paper explores the sources of uncertainty that cause firms to revise their capital investment plans and the stock market to revise its valuation of those firms. A simple method is developed to decompose the uncertai...Read more...
November 1991
Patrick Paul Walsh
This paper gives a general framework for analysing a trade divergence that runs across both the New International trade theory and the traditional analysis of export policy. The source of the trade divergence, the motive...Read more...
Tore Ellingsen
Countertrade - or reciprocal buying - is defined as a transaction involving (at least) a two-way transfer of goods, rather than a singular transfer of goods for money. The main objective of this paper is to explain the e...Read more...
March 1991
Harald Gruber
This paper sets out to model the evolution of market shares in the semiconductor industry. The time profile of market shares for different firms in this industry has shown a striking regularity over successive generation...Read more...
June 1990
Yves Mertens
This paper is concerned with the determinants of car prices in four European countries: Belgium, France, Germany and the United Kingdom, over the period 1970-1985. The main focus of the study lies in explaining the level...Read more...
March 1990
