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| Registros recuperados: 39 | |
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| Lopez, Rigoberto A.; Hathie, Ibrahima. |
| This paper tests the Grossman-Helpman Protection for Sale model using panel data from U.S. food processing industries with endogenous protection, import penetration, and political campaign. The results support the key predictions of the model: organized industries are granted higher protection that decreases with import penetration and the price elasticity of imports. Furthermore, the presence of import quotas raises the level of protection substantially. The estimated weight on aggregate welfare is strikingly similar those found by Goldberg and Maggi (1999) and Gawande and Bandopadhyay (2000), implying that protection is not for sale in these industries. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agribusiness. |
| Ano: 2002 |
URL: http://purl.umn.edu/19682 |
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| Lopez, Rigoberto A.. |
| This article examines the influence of campaign contributions on agricultural subsidies. Empirical results revealed that rent seeking works, i.e., campaign contributions of agricultural-related industries influence agricultural subsidies in the manner they best serve contributors' economic interests. Eliminating campaign contributions would significantly decrease agricultural subsidies, hurt farm groups, benefit consumers and taxpayers, and increase social welfare by approximately $5.5 billion. Although contributions are not the only determinants of agricultural subsidies, investment returns to farm PAC contributors are quite high ($1 in contributions brings about $2,000 in policy transfers). In fact, the results are in sharp contrast to the "truthful... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agricultural and Food Policy; Political Economy. |
| Ano: 2001 |
URL: http://purl.umn.edu/25223 |
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| Bonanno, Alessandro; Lopez, Rigoberto A.. |
| This paper investigates the impacts of store brands (i.e., private labels) and retail characteristics (scanners, deli, bakery, and pharmacy departments, ATMs, restaurant and store size) on fluid milk prices using 1,740 supermarket-level observations from four cities. Non-parametric results reveal that although private label milk initially exerts a procompetitive effect on milk prices, eventually the effect is to raise the prices of both manufacturers' brands and private labels. Econometric results further reveal that price differentials are larger for reduced-fat milk than for whole milk and that the more enhanced the retail configuration is, the higher milk prices are. Overall, the results attest to some degree of price discrimination by retailers through... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis; Industrial Organization. |
| Ano: 2004 |
URL: http://purl.umn.edu/25222 |
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| Bhuyan, Sanjib; Lopez, Rigoberto A.. |
| This paper estimates welfare losses in thirty-eight U.S. food and tobacco industries at the four-digit SIC level, then relates such losses to market structure and conduct variables to identify the welfare loss determinants. Empirical findings indicate that these losses are higher in markets characterized by high export intensity, high advertising expenditures, economies of scale, mergers and acquisitions, and market concentration. In addition, losses are larger in industries that sell finished consumer products and face lower import competition. |
| Tipo: Journal Article |
Palavras-chave: Agribusiness. |
| Ano: 1998 |
URL: http://purl.umn.edu/31519 |
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| Bonanno, Alessandro; Lopez, Rigoberto A.. |
| This paper measures the degree of monopsony power exerted by Wal-Mart over retail workers using a dominant-firm model and data on contiguous U.S. counties where the company operates, presenting for the first time a measure of the anti-competitive behavior of the company. Empirical results show that Wal-Mart’s monopsony power over workers varies significantly across the country, being higher in rural counties, particularly in the south. For instance, Wal-Mart’s buying power index in labor markets in rural southern central states is estimated to be 5% or higher while the impact on northeastern states’ retail wages is negligible. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Labor and Human Capital. |
| Ano: 2008 |
URL: http://purl.umn.edu/6219 |
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| Lopez, Rigoberto A.; Liron-Espana, Carmen. |
| This study estimates the elasticities of wholesale food prices, cost efficiency, and market power with respect to industrial concentration in 35 food processing industries, modifying the model of Lopez, Azzam, and Lirón-España (2002). In contrast to the results of their earlier analysis, findings of this study indicate that further increases in concentration would result in significant processing cost savings (and Lerner index increases) in nearly all industries and that output prices would decline in nearly 50% of the industries, although significantly so in only 20% of them. As industrial concentration rises, price declines occur in industries with low levels of concentration while price increases occur in highly concentrated industries. |
| Tipo: Journal Article |
Palavras-chave: Cost efficiency; Food prices; Food processing; Industrial concentration; Market power; Marketing; Production Economics; Productivity Analysis. |
| Ano: 2005 |
URL: http://purl.umn.edu/59610 |
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| Lopez, Rigoberto A.. |
| The objective of this article is to estimate historical economic surpluses for the subsectors involved in the U.S. sugar market. Annual producer and consumer surpluses were computed based on a five-equation model and 1958-87 data. In the last decade, the welfare position of cane- and beet-sugar producers has been roughly maintained, the domestic consumer surplus and the export quasi-rents to foreign countries have both declined, and quasi-rents of the corn-sweetener industry now surpass those that accrue to the cane industry and are about the same as those of the beet-sugar industry. Some policy implications are discussed. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1990 |
URL: http://purl.umn.edu/28970 |
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| Chidmi, Benaissa; Lopez, Rigoberto A.; Cotterill, Ronald W.. |
| The purpose of this paper is to examine the vertical relationship between the manufacturers of ready-to-eat cereals (RTEC) and the retailers in the Boston area. The study uses highly disaggregated (supermarket and brand level ) monthly data from Information Resources Inc (IRI) from 1995 to 1997.The Logit model is used to estimate the demand for 37 brands of RTEC in the top four supermarkets in the Boston area. The demand estimates are then used to compute the price-cost margins (PCM) for retailers and manufacturers under different vertical scenarios, including vertical Nash double marginalization, non-linear pricing, vertical integration, and collusion. The results of the study shed light on the power each agent (manufacturers and retailers) has to set the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Marketing. |
| Ano: 2004 |
URL: http://purl.umn.edu/19916 |
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| Liu, Xiaoou; Lopez, Rigoberto A.. |
| The Impact of Wal-Mart Supercenters on Supermarkets’ Profit Margins. XIAOOU LIU (Email: xiaoou2010@gmail.com, School of Agricultural Economics and Rural Development, Renmin University of China, Beijing, China 100872) RIGOBERTO LOPEZ (Professor and Department Head, Department of Agricultural and Resource Economics, Storrs, CT 06269) This paper quantifies the impact of Wal-Mart Supercenters on supermarkets’ profitability via a two-stage dynamic entry game, using simulated methods of moment and milk scanner data from Dallas/Fort Worth supermarkets. The empirical findings show that the entry of Wal-Mart Supercenters accounts for about an average of 50% decreases in profit margins for incumbent supermarkets. The effect of scale of economies is found to be more... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Wal-Mart; Entry; Profit margins; Dynamic games; Industrial Organization. |
| Ano: 2010 |
URL: http://purl.umn.edu/61800 |
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| Hathie, Ibrahima; Lopez, Rigoberto A.. |
| This paper ascertains the costs and benefits of diverting water from the Senegal River. Two scenarios are compared to the status quo of inaction: the social planner and the competitive scenarios. Although these two scenarios yield positive present values of net benefits, the social planner scenario would use smaller quantities of water while providing the highest net benefits to society. Given that the benefits are one-sided while the costs are spread over several constituencies that share the river, it is possible for the gainers to compensate the losers, especially the farmers of flood recession agriculture identified as the main deprived group. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2002 |
URL: http://purl.umn.edu/19586 |
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| Registros recuperados: 39 | |
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