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| Registros recuperados: 62 | |
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| Carter, Colin A.; Smith, Aaron D.. |
| Genetic modification of crops has revolutionized food production, but it remains controversial due to food safety and environmental concerns. A recent food safety scare provides a natural experiment on the corn market's willingness to accept unapproved genetically modified organisms. In 2000, a genetically modified corn variety called StarLink was discovered in the food-corn supply, even though it was not approved for human consumption. To estimate the price impact of this event, we develop the relative price of a substitute method, which applies not only to the StarLink event but also to rare events in other markets. We apply this method to measure the price impact of the StarLink contamination on the U.S. corn market. We find that the contamination led... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Q11; Q18; C22. |
| Ano: 2006 |
URL: http://purl.umn.edu/25447 |
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| Parikh, Ashok. |
| The objectives of this paper are to study the impact of liberalisation on trade deficits and current accounts of developing countries. It is expected that trade liberalisation would promote economic growth from the supply side by leading to a more efficient use of resources, by encouraging competition, and by increasing the flow of ideas and knowledge across national boundaries. Trade liberalisation could lead to faster import growth than export growth and hence the supply side benefits may be offset by the unsustainable balance of payments position. This study uses panel data of 42 countries (both time-series and cross-section dimension) to estimate the effect of trade liberalisation and growth on trade balance while controlling for other factors such as... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Panel data; Income Terms of Trade; Dynamic Optimisation; Dynamic panel model; International Relations/Trade; C21; C22; C23; F13; F14; F32. |
| Ano: 2004 |
URL: http://purl.umn.edu/26212 |
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| Resende Filho, Moises de Andrade. |
| This article investigates the potential gains to the U.S. meat sector with the implantation of the U.S. National Animal Identification System (NAIS). The focus is on the effect that the NAIS could have on consumers’ risk perception about eating meat. System of demand equations are estimated using time series of food safety indexes variables used as proxies for consumers’ reactions to news on meat safety issues. The series of food safety indexes are built on the basis of the number of food safety news reported in top U.S. newspapers. Using the preferred model estimates, three scenarios are constructed in order to account for the cases wherein the NAIS is not implemented, is implemented only for beef and is implemented for beef and pork. The differences in... |
| Tipo: Journal Article |
Palavras-chave: Animal identification system; Food safety; System of demand equations; Meat industry; USA.; Agribusiness; C22; Q11; Q13; Q18.. |
| Ano: 2008 |
URL: http://purl.umn.edu/61199 |
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| Dhehibi, Boubaker; Lachaal, Lassaad; Chebil, Ali. |
| The aim of this paper is to analyze and determine the factors influencing fish demand in Tunisia during the 1975-2000 period. A Box-Cox transformation is used to select the appropriate functional form between linear and double-log models. Results indicate that the double-log form fits better the data and is used for the empirical analysis. Calculated elasticities from static model show that fish demand is price-inelastic and that fish can be considered as a normal good. However, the dynamic analysis using Houthakker-Taylor model suggests that fish consumption in Tunisia depends on consumers psychological-buying habits. Finally, the values of the short and the long-run elasticities indicate that per capita consumption of fish in Tunisia is growing, but at a... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Fish demand; Box-Cox transformation; Double-log model; Tunisia; Demand and Price Analysis; D12; C22. |
| Ano: 2005 |
URL: http://purl.umn.edu/24715 |
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| Hodgson, Douglas J.; Linton, Oliver; Vorkink, Keith. |
| We apply semiparametric efficient estimation procedures for a seemingly unrelated regression model where the multivariate error density is elliptically symmetric to study the efficiency of the foreign exchange market. We consider both cointegrating regressions and standard stationary regressions. The elliptical symmetry assumption allows us to avoid the curse of dimensionality problem that typically arises in multivariate semiparametric estimation procedures, because the multivariate elliptically symmetric density function can be written as a function of a scalar transformation of the observed multivariate data. We test the unbiasedness hypothesis on both weekly and daily exchange rate data and strongly reject unbiasedness at the weekly horizon, but fail... |
| Tipo: Journal Article |
Palavras-chave: Forward exchange market; Time series econometrics; Nonparametric statistics; C22. |
| Ano: 2004 |
URL: http://purl.umn.edu/43548 |
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| Caballero, Ricardo J.; Engel, Eduardo M.R.A.. |
| In most instances, the dynamic response of monetary and other policies to shocks is infrequent and lumpy. The same holds for the microeconomic response of some of the most important economic variables, such as investment, labor demand, and prices. We show that the standard practice of estimating the speed of adjustment of such variables with partial-adjustment ARMA procedures substantially overestimates this speed. For example, for the target federal funds rate, we find that the actual response to shocks is less than half as fast as the estimated response. For investment, labor demand and prices, the speed of adjustment inferred from aggregates of a small number of agents is likely to be close to instantaneous. While aggregating across microeconomic units... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Speed of adjustment; Discrete adjustment; Lumpy adjustment; Aggregation; Calvo model; ARMA process; Partial adjustment; Expected response time; Monetary policy; Investment; Labor demand; Sticky prices; Idiosyncratic shocks; Impulse response function; Wold representation; Time-to-build; Financial Economics; C22; C43; D2; E2; E5. |
| Ano: 2003 |
URL: http://purl.umn.edu/28419 |
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| Mghenyi, Elliot W.; Jayne, Thomas S.. |
| This study estimates the effects on poverty resulting from maize price changes associated with the operations of the maize marketing board in Kenya. We consider both supply and demand responses and the accompanying adjustments in rural labor markets in estimating a second order approximation to equilibrium income changes. We then use stochastic dominance techniques to generate poverty rankings between the distribution of income with the effects of the government marketing operations and the distribution of counterfactual incomes. This approach effectively addresses concerns regarding the sensitivity of poverty estimates to the type of poverty measure used. Results indicate that the price-elevating effects of government maize marketing operations have... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Kenya; Income transfers; Maize policy; Crop Production/Industries; Food Security and Poverty; C22; O2; Q13; Q18. |
| Ano: 2006 |
URL: http://purl.umn.edu/25466 |
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| Registros recuperados: 62 | |
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