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1.
    
A multisectoral, multihousehold general equilibrium model of the Thai economy is used to analyze the implications of recent increases in international food prices. Higher food prices, especially staple grains, worsen poverty incidence in Thailand despite the presence of large numbers of poor farmers, many of whom benefit from higher prices. The positive effect on the welfare of poor farmers is dominated by the negative effect on poor consumers. Of the recent price increases for rice, sugar, cassava, maize, soybeans, urea, and petroleum, the increases in rice prices raise poverty incidence the most, despite Thailand being the world's largest rice exporter.  相似文献   

2.
    
A general equilibrium modeling approach is used to study the effect that rural road improvement has on poverty incidence in Laos. Household survey data are used to distinguish three categories of rural villages according to their road access: (i) no vehicular access; (ii) dry season only access; and (iii) all weather access. A general equilibrium model of the Lao economy is then used to simulate, first, the effect of upgrading category (i) to category (ii) roads, and second, category (ii) to category (iii) roads. The former has a larger poverty‐reducing effect but is also more costly.  相似文献   

3.
    
World food prices have experienced dramatic increases in recent years. These “shocks” affect food importers and exporters alike. Vietnam is a major exporter of rice, and rice is also a key item in domestic production, employment, and consumption. Accordingly, rice price shocks from the world market have general equilibrium impacts and as such, their implications for household welfare are not known ex ante. In this article, we present a framework for understanding the direct and indirect welfare effects of a global market shock of this kind. We quantify transmission of the shock from global indicator prices to domestic markets. Then we use an applied general equilibrium model to simulate the economic effects of the price changes. A recursive mapping to a nationally representative household living standards survey permits us to identify in detail the ceteris paribus effects of the shock on household incomes and welfare. In this analysis, interregional and intersectoral labor market adjustments emerge as key channels transmitting the effects of global price shocks across sectors and among households.  相似文献   

4.
    
After Taiwan became a member of the WTO in 2002, its tariff rates for fishery products decreased by an average of 35.5% from the level in 2001. Direct imports of fishery products from China would be allowed in 2004. These tariff reductions and the relaxation of import restrictions will have a strong effect on Taiwan's fishery sector. In this paper, we present an analysis of how fishery production, prices, input usage, and welfare distribution might react to trade liberalization. In addition to evaluating the overall impact of tariff reduction on Taiwan's fishery sector, we assess the effects of China's WTO accession on the Taiwanese market. We use a fishery sector equilibrium model in which 40 products and 68 fishing activities are identified. The model also includes an import–export subsector, a factor input subsector, and a supply–demand equilibrium condition to analyze the distributions of social welfare due to trade liberalization. Three simulations are conducted to investigate the impact of tariff reductions in 2004, 2 years after Taiwan has jointed the WTO. The results indicate that Taiwan's fishery sector will be adversely affected when it encounters the extremely low import prices of certain fishery products from China. The total production of the fishery sector and its value are predicted to decrease by 4.03% and 9.96%, respectively, in 2004. Aquaculture would suffer the heaviest loss with a 7.48% reduction in the production and a 19.23% reduction in its value. The demand for labor will decrease by 8.71%. The effect is most pronounced in aquaculture in which the demand for labor will go down by 11.40% and the wage rate will decline by 14.28%. To meet the challenge of globalization, the Taiwanese fishery industry will have to diversify, and improve its operational efficiency as well as production and distribution structures for a sustainable development.  相似文献   

5.
    
This article uses a sample of 72 developing countries to estimate the change in the cost of alleviating urban poverty brought about by the recent increase in food prices. This cost is approximated by the change in the poverty deficit (PD), that is, the variation in financial resources required to eliminate poverty under perfect targeting. The results show that, for most countries, the cost represents less than 0.2% of gross domestic product. However, in the most severely affected, it may exceed 3%. In all countries, the change in the PD is mostly due to the negative real income effect of those households that were poor before the price shock, while the cost attributable to new households falling into poverty is negligible. Thus, in countries where transfer mechanisms with effective targeting already exist, the most cost‐effective strategy would be to scale up such programs rather than designing tools to identify the new poor.  相似文献   

6.
    
This article compares the theoretical and functional specification of production in partial equilibrium (PE) and computable general equilibrium (CGE) models of the global agricultural and food system included in the AgMIP model comparison study. The two model families differ in their scope—partial versus economy‐wide—and in how they represent technology and the behavior of supply and demand in markets. The CGE models are “deep” structural models in that they explicitly solve the maximization problem of consumers and producers, assuming utility maximization and profit maximization with production/cost functions that include all factor inputs. The PE models divide into two groups on the supply side: (1) “shallow” structural models, which essentially specify area/yield supply functions with no explicit maximization behavior, and (2) “deep” structural models that provide a detailed activity‐analysis specification of technology and explicit optimizing behavior by producers. While the models vary in their specifications of technology, both within and between the PE and CGE families, we consider two stylized theoretical models to compare the behavior of crop yields and supply functions in CGE models with their behavior in shallow structural PE models. We find that the theoretical responsiveness of supply to changes in prices can be similar, depending on parameter choices that define the behavior of implicit supply functions over the domain of applicability defined by the common scenarios used in the AgMIP comparisons. In practice, however, the applied models are more complex and differ in their empirical sensitivity to variations in specification—comparability of results given parameter choices is an empirical question. To illustrate the issues, sensitivity analysis is done with one global CGE model, MAGNET, to indicate how the results vary with different specification of technical change, and how they compare with the results from PE models.  相似文献   

7.
Most studies of the welfare impact of higher food prices adopt Deaton's approach, based on the first‐order effect of prices changes using income and expenditure survey data. This paper explores the impact of higher maize and food prices in Ghana and considers the sensitivity of results to changes in several assumptions. If second‐order effects are included, incorporating household response to price changes, the welfare impact of food price increases is more positive, but only modestly so. However, if we assume that marketing margins are constant in real terms rather than proportional to prices, the welfare impact is substantially more positive. These findings highlight the need for more research on the behavior of marketing margins under volatile prices.  相似文献   

8.
    
This article studies the impact of the rice price increase between 2005 and 2010 on consumption in rural Bangladesh. Using the Household Income and Expenditure Survey (HIES) data, we compare net rice buyers and sellers to self‐sufficient households. To identify the effect of rice price changes on household consumption of rice, nonrice food and nonfood items, we employ a difference‐in‐differences (DiD) technique. Our findings indicate that the surge in domestic rice prices between 2005 and 2010 reduced the nonrice food consumption of net rice buyer households by 7%, compared to the households who are self‐sufficient in rice production. However, it did neither affect their rice nor their nonfood consumption. In contrast, while we find no significant effect of rice price increases on the rice consumption of net rice sellers, we observe a 9% increase in their nonrice food consumption. In such situation, a subsidy on low‐quality rice may be effective in fulfilling the nutritional requirement of low‐income households.  相似文献   

9.
In this study, we use the Harbinson Proposal and July Framework to compare a ‘likely’ Doha scenario with a realistic baseline. The novelty of this study is that we focus exclusively on the trade‐led welfare impacts in selected EU member states. The important features of this note are the: (i) usage of the latest Global Trade Analysis Project (version 6) data; (ii) focus on EU25 regions incorporating all major Common Agricultural Policy instruments and reforms; and (iii) inclusion of binding tariff overhangs into the Harbinson tariff reductions. Results show the damping effects of tariff‐binding overhangs on welfare outcomes. This and other factors which limit the gains to liberalisation mean that the EU25 only realises 10% of its long‐run welfare gain potential, as defined by complete liberalisation.  相似文献   

10.
Food deserts and their potential effects on diet and nutrition have received much attention from policymakers. While some research has found a correlation between food deserts and consumer outcomes, it is unclear whether food deserts truly affect consumer choices. In this article, we compare food prices in food deserts, defined as low‐income, low‐access census tracts, and nonfood deserts to observe whether and to what extent consumers face higher prices for a complete diet in food deserts. If a nutritionally complete diet costs significantly more in food deserts, resident consumers may be constrained from consuming healthier foods. We use store‐level scanner data from a nationally representative sample and calculate a census‐tract level Exact Price Index (EPI) based on a food basket defined by the Thrifty Food Plan (TFP). The EPI addresses potential biases from both product heterogeneity and variety availability. We find that the overall price impact of living in a food desert is small; low‐access areas have only 3.5% higher EPI than high‐access counterparts. However, consumers who are constrained to shop within their own census tracts face a much higher EPI than high‐access counterparts (9.2%). The higher EPI primarily comes from lower variety availability in food deserts.  相似文献   

11.
    
Hubbard and Philippidis Journal of Agricultural Economics (2001) Vol. 52, pp. 87–95] employ the standard Global Trade Analysis Project (GTAP) computable general equilibrium (CGE) model to analyse the impact of the bovine spongiform encephalopathy (BSE)‐induced ban on exports of UK beef. This note extends that study in four ways: (i) the dynamic GTAP model is employed to characterise long‐run savings–investment behaviour more correctly; (ii) the effect of the foot‐and‐mouth disease (FMD) outbreak of 2001 is included; (iii) an allowance is made for different levels of recovery in consumer confidence; and (iv) the impact analysis is now compared through time with a ‘no‐ban’ baseline. Long‐run comparisons after removal of the ban suggest that its legacy may continue for some time. However, because of the remedial safeguards and assurances offered in the wake of the BSE and FMD crises, there is a possibility that exports and outputs increase. Nevertheless, the economy‐wide impacts are negligible in both the short and the long run.  相似文献   

12.
    
In the context of the Partnership Agreements between the European Union (EU) and the African, Caribbean, and Pacific countries, this study estimates ad valorem tariff equivalents of European food safety standards on imports of key horticultural and fish products from Kenya, Tanzania, Uganda, and Zambia. The study uses an extension of the price‐wedge method to account for imperfect substitution and factor endowment in monopolistic competition. The estimated tariff equivalents are 55% and 98% for imports of fresh peas from Zambia to the Netherlands and the U.K., respectively. They range from 39% to 64% for imports of green beans and avocados from Kenya and from 63% to 270% for imports of frozen fish fillets in EU countries from the East African Community. We also observe large variations in tariff equivalents for the horticultural and fish products over time and EU importing countries.  相似文献   

13.
During the past two decades, food assistance policy has shifted toward local or regional food purchases and away from purchases from donor countries. Although most local and regional procurement occurs through hard tendering processes open to large‐scale firms and farms, there is growing interest in identifying how and whether to procure from smallholder farmer organizations (FOs). To date, little is known about the drivers of successful contracting with FOs. We utilize data from the United Nations World Food Programme Purchase for Progress pilot in three East African countries to predict defaults on contracts. We examine four possible explanations: country contexts, FO characteristics, prior experience with contracts, and contract modalities and their relationship to local spot market prices. The single most important predictor of default is the increase in market prices between contract approval and delivery. Yet, although increases in market prices are linked to increases in default, this relationship is decreasing in contract size, indicating search costs associated with breaking contracts. Our findings yield both generalizable and context‐specific insights about whether—and when—procuring from smallholder farmers can be successfully integrated into the food assistance toolkit.  相似文献   

14.
    
We show that the Alchian–Allen theorem holds in three‐good world. We empirically test the theorem by examining the relative demand for three quality‐differentiated coffee varieties sold globally and confirm that a common per‐unit charge increases the overall quality of coffee demanded. Our empirical specification employs the Poisson pseudo maximum likelihood method, which prevents sample selection bias when zero flows between country pairs occur and estimated parameter inconsistency when the data exhibit heteroscedasticity. This is a significant improvement compared to previous practice of using the ordinary least squares to estimate the log‐log formulation, which led to both biased and inconsistent parameter estimates.  相似文献   

15.
    
We analyse the general equilibrium effects of the growth of high standard food chains on household welfare. To measure structural production changes and welfare effects on rural and urban households, our model has two types of agents, five kinds of products and four types of factors. We calibrate the model using a Chinese dataset. The simulation results show that the effects on poor rural households depend on a variety of factors, including the nature of the shocks leading to the expansion of high standard sector, production technologies, trade effects, spillover effects on low standard markets, factor market constraints and labour market effects.  相似文献   

16.
    
In December 2014, the U.S. and Mexico agreed to a suspension agreement that set a $22.25/cwt import price floor on U.S. sugar imports from Mexico. A partial equilibrium trade model was developed to estimate the economic impact the agreement would have had if it had been in effect from 2008 to 2014. In years when the price floor would have been binding, on average, U.S. producers would have gained $138 million and Mexican producers would have lost $218 million. However, total Mexican welfare would have actually increased by $11.5 million. Furthermore, the average price floor that would have maximized total Mexican welfare over that period is $22.76/cwt. Also, under certain supply and demand elasticity conditions, the average price floor that would have maximized joint U.S. and Mexican producer welfare over that period is $21.91/cwt. The latter two estimates are both close to the actual price floor agreed to in the 2014 Suspension Agreement.  相似文献   

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