Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 29
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Valuing Intellectual Property Rights in an Imperfectly Competitive Market: A Biopharming Application AgEcon
Kostandini, Genti; Mills, Bradford F..
Small research firms developing biotechnology applications often focus on establishing intellectual property rights (IPRs), which can then be sold to more established firms with existing market channels. This paper presents a method for valuing the IPRs for an innovation that lowers product production costs below those associated with the patented process of a monopolist. The application to Glucocerebrosidase enzyme from transgenic tobacco suggests an IPRs value of about $1.75 billion. Despite the innovator’s market power, significant surplus gains also accrue to consumers. Further, U.S. antitrust laws that prohibit IPRs acquisition by the current monopolist increase consumer welfare by almost 50%.
Tipo: Journal Article Palavras-chave: Biopharmaceuticals; Biopharming; Economic surplus; Imperfect competition; Intellectual property rights; Agribusiness; Demand and Price Analysis; Financial Economics; Marketing; D23; M13; D43; D60.
Ano: 2009 URL: http://purl.umn.edu/56641
Imagem não selecionada

Imprime registro no formato completo
Imperfect competition in the fresh tomato industry AgEcon
Hadj Djelloul, Mohammed; Requillart, Vincent; Simioni, Michel.
In this paper, we analyse the market power of the retail industry in the French tomato market. Following the methods developed in the New Empirical Industrial Organization, we develop a structural model of this industry. The analysis is based on detailed data on final consumption and prices at both shipper and consumer levels for two types of tomatoes in France. The structural model is composed of a system of demand equation and supply equation. Supply equation includes a term that represents the market power of the retail sector. We use different models of demand in order to test the robustness of our results. We show that i) elasticity of demand varies during the year ii) the retail sector exercise only a "moderate" market power iii) the estimated...
Tipo: Conference Paper or Presentation Palavras-chave: Market power; Imperfect competition; Fresh products; Crop Production/Industries; Demand and Price Analysis; Marketing; L13; Q13; L66; L81.
Ano: 2008 URL: http://purl.umn.edu/6682
Imagem não selecionada

Imprime registro no formato completo
An Analysis of Pricing in the U.S. Cotton Seed Market AgEcon
Shi, Guanming; Stiegert, Kyle W.; Chavas, Jean-Paul.
The purpose of the research in this paper is to investigate the impact of differentiated vertical strategies by agricultural biotechnology firms in the U.S. cottonseed market. The model advances the measurement of industry concentration to consider substitution/complementarity relationships among differentiated products delivered under different vertical structures. We find evidence of sub-additive pricing in the stacking of bundled biotech traits. Prices paid by farmers for cottonseed sold under vertical integration are found to be higher than under licensing. The model is flexible and allows for evaluation of the effects of changing market structures. The parameters on traditional measures of concentration indicate that higher concentration leads to...
Tipo: Conference Paper or Presentation Palavras-chave: Modal Vertical Strategy; Imperfect competition; Cotton seed; Biotechnology; Agricultural and Food Policy; Demand and Price Analysis; Industrial Organization; L13; L4; L65.
Ano: 2009 URL: http://purl.umn.edu/51617
Imagem não selecionada

Imprime registro no formato completo
POLICY ANALYSIS IN AN IMPERFECTLY COMPETITIVE MARKET: A CONJECTURAL VARIATIONS MODEL FOR THE FOOD MANUFACTURING INDUSTRY AgEcon
Maier, Leopold.
The effects of government policies are analyzed in a conjectural variations model of U.S. food manufacturing. The policy elasticities of the perfectly competitive model are valid predictors of policy effects irrespective of the type of oligopoly. Changes in the degree of competition may alter the magnitude of the policy elasticities. Keywords: firm behavior, market structure, imperfect competition, conjectural variations model, policy analysis, food manufacturing
Tipo: Working or Discussion Paper Palavras-chave: Firm behavior; Market structure; Imperfect competition; Conjectural variations model; Policy analysis; Food manufacturing; Agribusiness; Research Methods/ Statistical Methods.
Ano: 1990 URL: http://purl.umn.edu/6878
Imagem não selecionada

Imprime registro no formato completo
Imperfect Competition and Total Factor Productivity Growth in U.S. Food Processing AgEcon
Azzam, Azzeddine M.; Lopez, Elena; Lopez, Rigoberto A..
This article examines the role of imperfect competition in determining total factor productivity growth (TFPG) by bringing together a New Empirical Industrial Organization (NEIO) model and the TFPG model of Nadiri and Mamuneas (1998). Applying the integrated model to 1973-92 data from 29 food processing industries revealed that changes in markups, economies of scale, and demand growth contributed positively to TFPG while the disembodied technical change was a negative contributor. Furthermore, the TFPG estimates are starkly different from the conventional (Solow's residual) TFPG measures, underscoring the need to account for imperfect competition, returns to scale, and demand in analyses of this type.
Tipo: Working or Discussion Paper Palavras-chave: Productivity growth; Imperfect competition; Scale economies; Food processing; Agribusiness; Industrial Organization; Productivity Analysis.
Ano: 2002 URL: http://purl.umn.edu/25147
Imagem não selecionada

Imprime registro no formato completo
Noncompetitive Pricing and Exchange Rate Pass-Through in Mauritanian Octopus Export Markets AgEcon
Kazmierczak, Richard F., Jr.; Zapata, Hector O.; Diop, Hamady.
Octopus exports are an important source of foreign exchange for Mauritania. The export market has historically been dominated by coordinated Japanese buyers, a situation that led Mauritania to create the Societe Mauritanienne de Commercialisation de Poisson (SMCP) to negotiate with buyers and manage all octopus exports. Issues concerning competitiveness, price discrimination, and exchange rate pass-through in the Mauritanian octopus export market corrected for contemporaneous and serial correlation. Results indicate some degree of price discrimination across destination markets, market share enhancement through local currency price stabilization, and increases in marginal costs of production following nationalization of the Mauritanian trawler fleet. Thus,...
Tipo: Journal Article Palavras-chave: International trade; Exchange rates; Imperfect competition; Octopus fisheries; Agribusiness; Demand and Price Analysis; International Relations/Trade.
Ano: 1997 URL: http://purl.umn.edu/90407
Imagem não selecionada

Imprime registro no formato completo
INFORMATION SHARING AND OLIGOPOLY IN AGRICULTURAL MARKETS: THE ROLE OF BARGAINING ASSOCIATIONS AgEcon
Hueth, Brent; Marcoul, Philippe.
We study incentives for information sharing (about uncertain future demand for final output) among firms in imperfectly competitive markets for farm output. Information sharing generally leads to increases in expected total welfare but may reduce expected firm profits. Even when expected firm profits increase, information sharing does not represent equilibrium behavior because firms face a prisoner?s dilemma in which it is privately rational for each firm to withhold information, given that other firms report truthfully. This equilibrium can be overcome if firms commit to simultaneously reporting their information and if reports are verifiable. We argue that agricultural bargaining associations serve both these roles.
Tipo: Working or Discussion Paper Palavras-chave: Agricultural markets; Bargaining; Imperfect competition; Information; Marketing.
Ano: 2002 URL: http://purl.umn.edu/18576
Imagem não selecionada

Imprime registro no formato completo
Market Power in UK Food Retailing: Theory and Evidence from Seven Product Groups AgEcon
Lloyd, Tim A.; McCorriston, Steve; Morgan, C. Wyn; Rayner, Anthony J.; Weldegebriel, Habtu T..
Establishing the presence of market power in food chains has become an increasingly pertinent line of enquiry given the trend towards increasing concentration that has been observed in many parts of the world. This paper presents a theoretical model of price transmission in vertically related markets under imperfect competition. The model delivers a quasi-reduced form representation that is empirically tractable using readily available market data to test for the presence of market power. In particular, we show that the hypothesis of perfect competition can be rejected if shocks to the demand and supply function are significant and correctly signed in price transmission equations. Using a cointegrated vector autoregression, we find empirical results that...
Tipo: Conference Paper or Presentation Palavras-chave: Imperfect competition; Cointegrated VARs; UK food industry; Marketing; D4; L81.
Ano: 2006 URL: http://purl.umn.edu/25712
Imagem não selecionada

Imprime registro no formato completo
Crop Research Incentives in a Privatized Industry: A Stochastic Approach AgEcon
Malla, Stavroula; Gray, Richard S..
We model today's privatized crop research industry as a small number of firms, developing and selling differentiated products to heterogeneous producers. Crop variety research is modeled as a search process, which allows us to differentiate between applied and basic research and recognize research as a stochastic process. We use the framework to develop a number of propositions regarding private research incentives, the spillovers of knowledge, and the impact of public policy. The results suggest an underinvestment in research even when property rights have been established.
Tipo: Conference Paper or Presentation Palavras-chave: Search process; Stochastic process; Biotechnology; IPRs; Applied R&D; Basic R&D; Imperfect competition; Differentiated products; Heterogeneous producers.; Agribusiness.
Ano: 2002 URL: http://purl.umn.edu/24936
Imagem não selecionada

Imprime registro no formato completo
The Welfare Effects of Imperfect Harmonization of Trade and Industrial Policy AgEcon
Gatsios, Konstantine; Karp, Larry S..
Partial cooperation in setting trade policy may be worse than no cooperation for countries who form a customs union. The paper investigates three situations where this is likely to occur. First, if the countries forming the union comprise too small a percentage of the non-competitive sector of the industry, their cooperation may be disadvantageous for essentially the same reason that a merger may be disadvantageous in oligopolistic industries. Second, even if the countries forming the union comprise the entire non-competitive sector of industry, cooperation on trade policy may be disadvantageous if industrial policy (e.g. investment subsidies) are chosen non-cooperatively. The reason is that cooperation in trade policy may exacerbate the inefficiencies...
Tipo: Working or Discussion Paper Palavras-chave: Trade and industrial policy; Imperfect competition; Customs union; International Relations/Trade.
Ano: 1989 URL: http://purl.umn.edu/51256
Imagem não selecionada

Imprime registro no formato completo
OBSERVATIONS ON COOPERATIVE BARGAINING IN U.S. AGRICULTURAL MARKETS AgEcon
Hueth, Brent; Marcoul, Philippe.
This paper identifies market and commodity characteristics that seem to support successful cooperative bargaining in markets for farm output. Bargaining is not just about increasing prices paid to farmers; indeed, although there is very little empirical research that addresses the issue, what evidence does exist suggests that cooperative bargaining has very little direct influence on price. Nevertheless, the price negotiation process may be useful in itself as a form of price discovery in markets where there is uncertainty about market supply and demand conditions, and bargaining associations can play an important role in ensuring contract reliability. These and other benefits must be weighed against the organizational and ongoing operational costs of a...
Tipo: Working or Discussion Paper Palavras-chave: Agricultural markets; Cooperative bargaining; Imperfect competition; Marketing.
Ano: 2002 URL: http://purl.umn.edu/18526
Imagem não selecionada

Imprime registro no formato completo
EVALUATING U.S. GENERIC MILK ADVERTISING EFFECTIVENESS USING AN IMPERFECT COMPETITION MODEL AgEcon
Suzuki, Nobuhiro; Kaiser, Harry M.; Lenz, John E.; Forker, Olan D..
An analytical model to evaluate the effectiveness of u.s. generic milk advertising which incorporates the degree of market competition is presented. Unlike traditional perfect competition models, the imperfect competition model allows for simultaneous movement of both price and quantity with an endogenous fluid (Class I) price differential. The simulation results of the imperfect competition model are compared with the conventional exogenous fluid price differential model. It is shown that the conventional fixed fluid price differential model may under-state the effectiveness of U.s. generic milk advertising in terms of returns to producers.
Tipo: Technical Report Palavras-chave: Generic milk advertising; Imperfect competition; Fluid differential; Livestock Production/Industries; Marketing.
Ano: 1993 URL: http://purl.umn.edu/123015
Imagem não selecionada

Imprime registro no formato completo
ALTERNATIVE OLIGOPOLISTIC STRUCTURES IN INTERNATIONAL COMMODITY MARKETS: PRICE OR QUANTITY COMPETITION? AgEcon
Carter, Colin A.; MacLaren, Donald.
It has been shown in new trade theory that trade taxes/subsidies may be optimal in the case of oligopolistic markets. This result has relevance for international commodity markets because there is growing evidence of imperfect competition in commodity trade. However, it has also been demonstrated that the optimal strategic trade policy depends on whether the market is distinguished by Bertrand (price) or Cournot (quantity) competition. We argue that commodity markets may be characterised by either form of imperfect competition and also by product differentiation. As an illustration, we present a set of models of the Japanese market for beef imports in which account is taken of various forms of strategic interaction between Australian and United States...
Tipo: Working or Discussion Paper Palavras-chave: Strategic trade theory; Imperfect competition; Oligopolistic international commodity markets; International Relations/Trade.
Ano: 1994 URL: http://purl.umn.edu/51223
Imagem não selecionada

Imprime registro no formato completo
The Effects of Vertical Organization on the Pricing of Differentiated Products AgEcon
Shi, Guanming; Chavas, Jean-Paul.
We investigate differentiated product pricing and the effects of vertical organization under imperfect competition. We rely on vertical measures of concentration (termed VHHI) to study how the exercise of market power varies with substitution/complementarity relationships among products and vertical structures. This approach is applied to U.S. soybean seed pricing under vertical integration versus licensing. We find evidence that vertical organization affects seed prices, with an impact ranging from 1.87% to 13.6% of the mean price. These effects vary by institutional setup.We also find that complementarity can mitigate price enhancements associated with market concentration.
Tipo: Article Palavras-chave: Biotechnology; Imperfect competition; Pricing; Seed; Soybean; Vertical structures; Demand and Price Analysis; Industrial Organization.
Ano: 2011 URL: http://purl.umn.edu/119157
Imagem não selecionada

Imprime registro no formato completo
Strategic Choice of Domestic Environmental Policy Instrument and International Emissions Trading Scheme in an Open Economy with Imperfect Competition AgEcon
Boom, Jan Tjeerd.
This paper presents a model of imperfect international competition. Within this framework, the optimal choice of national environmental policy instrument and international emissions trading scheme is discussed. The choice of national instrument is restricted to absolute and relative standards, which form the basis for permit and credit trading respectively. It is shown that relatives standards and credit trading lead to higher output than emission ceilings and permit trading. I find that governments want to increase production beyond the level reached with emission ceilings and therefore prefer relative standards. Furthermore, international emissions trading is only optimal when the country imports emission quotas, and in several cases, governments will...
Tipo: Working or Discussion Paper Palavras-chave: Environmental policy; Emissions trading; Credit trading; International trade; Imperfect competition; Strategic behavior; Environmental Economics and Policy; F12; L51; Q25; Q28.
Ano: 2003 URL: http://purl.umn.edu/24177
Imagem não selecionada

Imprime registro no formato completo
NONCOMPETITIVE PRICING AND EXCHANGE RATE PASS-THROUGH IN SELECTED U.S. AND THAI RICE MARKETS AgEcon
Yumkella, Kandeh K.; Unnevehr, Laurian J.; Garcia, Philip.
A "pricing to market" international trade model is applied to U.S. and Thai rice exports to high and middle income countries that are continuous rice importers. These markets are characterized by strong quality preferences and highly inelastic demand, and thus exporters may exercise market power. Evidence of noncompetitive pricing either through price discrimination across destinations or through imperfect exchange rate pass-through is found in this small but growing segment of the international rice trade.
Tipo: Journal Article Palavras-chave: Exchange rates; Imperfect competition; International trade; Rice; International Relations/Trade.
Ano: 1994 URL: http://purl.umn.edu/15183
Imagem não selecionada

Imprime registro no formato completo
On Pricing and Vertical Organization of Differentiated Products: The Case of Soybean Seed Industry AgEcon
Shi, Guanming; Chavas, Jean-Paul.
This paper investigates the pricing and vertical organization of differentiated products under imperfect competition. In a multiproduct context, a Cournot model is used to examine how substitution/complementarity relationships among products and vertical structures can affect the exercise of market power. This motivates a generalization of the Herfindahl-Hirschman index (termed VHHI) capturing how market concentration and vertical structures interact to influence prices of differentiated products. The analysis is applied to pricing of soybean seeds in the US over the period 2000-2007. The analysis considers two vertical structures employed by biotech firms: vertical integration and licensing. The econometric analysis finds evidence that vertical...
Tipo: Conference Paper or Presentation Palavras-chave: Vertical structures; Pricing; Imperfect competition; Seed; Biotechnology; Demand and Price Analysis; Industrial Organization; L13; L4; L65.
Ano: 2009 URL: http://purl.umn.edu/49186
Imagem não selecionada

Imprime registro no formato completo
Grain Distribution in Ghana under Imperfectly Competitive Market Conditions AgEcon
Langyintuo, Augustine S..
Interspatial and intertemporal grain distribution in Ghana is a private sector activity carried out mainly by traders. These traders sometimes collude to maximize their joint profits. By so doing they influence the conduct of the grains market. To examine the effect of their actions on the informal maize market in Ghana, a spatial equilibrium model was estimated under three scenarios: (1) Perfect competition, (2) Cournot-Narsh conjectures, and (3) Collusion. The results indicate that imperfect competition distorts grain flows, reduces consumer welfare and depresses traders’ sales revenue. Collusive behavior of traders, on the other hand, causes the greatest distortion of grain flows as well as trader and consumer welfare. These results draw attention to...
Tipo: Journal Article Palavras-chave: Spatial equilibrium; Monopoly; Imperfect competition; Interspatial; Cournot- Narsh conjectures; Crop Production/Industries; D4; L1.
Ano: 2010 URL: http://purl.umn.edu/96166
Imagem não selecionada

Imprime registro no formato completo
PUBLIC POLICY IN VERTICALLY RELATED MARKETS: A COURNOT OLIGOPOLY-OLIGOPSONY MODEL AgEcon
Desquilbet, Marion; Guyomard, Herve.
We use a partial equilibrium two-country model, with two vertically related markets, with perfect competition in the primary good sector and with a fixed number of processing firms in each country, characterized by a Cournot behavior upstream and downstream. In the first stage of the game, the government of the exporting country chooses the level of price instruments on both goods. The targeting principle is used to characterize optimal intervention in presence of a minimum revenue constraint towards primary producers. Keywords: vertically related markets, imperfect
Tipo: Conference Paper or Presentation Palavras-chave: Vertically related markets; Imperfect competition; Industrial Organization; International Relations/Trade; F1; H2; L1; Q1.
Ano: 1999 URL: http://purl.umn.edu/21561
Imagem não selecionada

Imprime registro no formato completo
Market Power and Output-Based Refunding of Environmental Policy Revenues AgEcon
Fischer, Carolyn.
Output-based refunding of environmental policy revenues combines a tax on emissions with a subsidy to output. With imperfect competition, subsidies can discourage output underprovision. However, when market shares are significant, endogenous refunding suffers compared to a fixed subsidy. Refunding the emissions tax according to market share reduces the incentive to abate, and marginal abatement costs will not be equalized if market shares differ. In a Cournot duopoly, endogenous refunding leads to higher output, emissions, and possibly costs compared to a fixed rebate program. These results hold whether emission rates are determined simultaneously or strategically in a two-stage model.
Tipo: Working or Discussion Paper Palavras-chave: Emissions tax; Earmarking; Tradable performance standards; Imperfect competition; Cournot; Duopoly; Refunding; Subsidy; Environmental Economics and Policy; H21; H23; Q2.
Ano: 2003 URL: http://purl.umn.edu/10893
Registros recuperados: 29
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional