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1.
Alternative wheat storage policies which maximise the expected present value of returns for consumers, producers, a monopoly storage agency and society as a whole are derived using a dynamic programming model. Results are compared with those from an earlier simulation model, and are found to justify higher investment in storage capacity compared with that suggested by the simulation model. The model is extended to derive optimal storage policies if production follows a stochastic cobweb process.  相似文献   

2.
Agricultural economists and policy makers in the United States believe that the magnitude of the export demand elasticity is one of the most important parameters used in farm policy decisions. However, past empirical estimates show wide variation in the size of the U.S. export demand elasticity. Reasons for this wide variation go beyond differences in model specification, estimation methods, and period of estimation to involve factors such as trade policies and changes in the supply and demand conditions of foreign countries. In view of the continual variation in magnitude, the elasticity of export demand should be viewed as a variable rather than as a parameter. In this study, U.S. wheat export demand elasticities are computed using a world wheat trade model. The estimates show that the elasticities vary significantly over time. They also reveal that elimination of trade barriers would more than double wheat export demand elasticities.  相似文献   

3.
Targeting of agri-environmental measures (AEMs) is a key to increasing the cost-effectiveness of governmental support for biodiversity conservation and the provision of ecosystem services from agriculture. Existing literature, however, often focuses on single measures without considering that policies are usually bundles of different measures addressing multiple non-marketed goods and services. Thus, interaction effects of a set of policies in a given policy mix may influence the cost-effectiveness of single measures. Recently, Swiss agricultural policy was redesigned using the Tinbergen rule as its basis, i.e., a single measure for each policy goal, including additional targeted direct payments. This facilitates testing for interaction effects of multiple targeted AEMs. Here we use a social-ecological, agent-based modelling framework to assess interaction effects of these agricultural policies while accounting for climate change impacts in our analysis. The results from our case study in a mountain region show that ecosystem service provision increases with targeted payments. However, interaction effects of the different targeted policies affect the provision levels of all goods and services. In particular, changes at the extensive margin, i.e., the total amount of land that is under production, largely determine the amount of ecosystem services provided. Thus, climate change driven productivity increases and policies that keep land in production may substantially support the provision of non-marketed goods and services in marginal agricultural production regions with a high potential for land abandonment. Consequently, the effectiveness of targeted policy measures should also consider changes at the extensive margin and be assessed in the context of bundles or portfolios of different policy measures.  相似文献   

4.
The performance of the poultry industry in Indonesia is analyzed in terms of changes in producer and consumer welfare as a result of public policy intended to limit the size of production units in order to distribute growth opportunities to smallet farms. Elasticities of supply and demand are estimated using the seemingly unrelated system of equations. The hypothesis of a policy-induced structural change, estimated through a dummy variable accounting for a shift in supply associated with implementation of the policy, shows a negative impact on the output supplied and the welfare of producers and consumers to the tune of about Rp 94 billion or roughly about 0.1% of national income as of 1983. The study suggests an important trade-off between more equitable income distribution and economic efficiency.  相似文献   

5.
A major concern about biofuels is that increasing biofuel feedstock demand reduces availability of crops for food and feed leading to higher food prices. This paper investigates relations between biofuel policies and prices of rapeseed, the major feedstock used for biodiesel production in Europe, and the impact of rapeseed prices on crop acreages in Germany and France. Biodiesel is an important biofuel in Europe, and Germany and France are the largest biodiesel producers in Europe. First, the various biofuel policies in Germany and France are discussed, followed by an analysis of their effects on rapeseed prices. Although theory indicates that such effects exist, we could not find empirical evidence for them. Second, using regional land use panel data from Germany and France we investigate empirically whether crop shares have been affected by rapeseed prices in the period 2000–2015 and whether these price effects changed because of biofuel policy changes. Results show that wheat shares in Germany and France did respond to rapeseed prices, but barley shares did not. Moreover, mandatory blending introduced in Germany in 2007 and production quotas introduced in France in 2005 led to a stronger effect of rapeseed prices on wheat shares, but again did not affect barley shares.  相似文献   

6.
Agricultural pricing policies in developing countries are often the result of complex interactions between producer, consumer and merchant groups and their relative effectiveness in influencing government decision making. Even within governments, various ministries often have opposing views. In this environment one of the contributions a policy analyst can make is to attempt to quantify the effects of different policy options. This permits a more informed discussion which hopefully leads to better decision-making and an improved incentive environment. Many analyses of agricultural pricing policies have used the standard partial equilibrium analysis where no linkages between commodity markets were considered. In this paper we have considered cross-price effects. Also, we have discussed issues relating to other adjustments/refinements of the standard method so that a practitioner not familiar with the various methods can form an opinion of what the options are and what adjustments may be appropriate for a particular case in question. The adjustments relate to overvaluation of currencies, input price distortions, differences in the degree of distortions between producers and consumers, and variability of border prices. The inclusion of cross-price elasticities was important for assessing production, consumption and trade effects for Argentina, but for the other countries it resulted in only somewhat improved accuracy. The adjustment for exchange rates had a large impact in Egypt and was important for other countries as well. This underlines the importance of exchange rates as key variables for agricultural pricing policies in general. The numbers show that the traditional taxation policies of agricultural products in the sample of developing countries is somewhat less widespread than in the past. These policies, however, continue to favor consumers over producers, with significant losses for some of the latter. The large size of welfare losses, especially compared to efficiency losses, highlights the importance of correcting distorted prices that adversely affect the poorest sections of society. Also, the usual government objective of taxing producers to raise revenues is frequently defeated by the large subsidies provided to consumers. For the partitioner, for whom time is often of the essence, the assessment of welfare effects using the partial equilibrium method may provide reasonably good ‘first cut’ estimates of the order of magnitude of the impact of distortions. But often, these 'base case estimates' can and should be adjusted for a number of possible factors. The analyst needs to determine how important accurate estimates of key variables are to the policy makers; he or she then needs to compare the costs involved in generating or gathering the data and doing the calculations with the benefits of a broader and more accurate analysis of the distortionary effects of the particular case in question.  相似文献   

7.
The emergence of the EC as a major exporter of cereals in the 1980s and the escalation of international agricultural trade confrontations emphasize the importance of understanding the effects of EC policy actions. Several important features of the EC wheat market are incorporated in an analytical and empirical model including imperfect substitutability in demand between imports and domestic supplies, the simultaneous import and export of wheat by the EC, the distinct impact of threshold versus intervention policy prices, MCAs, and the imperfect transmission between market and intervention prices. Results indicate that EC policies have a smaller impact on world price than found in previous studies.  相似文献   

8.
Models are constructed to assess the welfare effects for producers, consumers and society of producers using forecast prices based on more accurate estimates of variables causing shifts in the demand for and supply of commodities. The basic model is a stochastic cobweb model in which producers' forecast price is the rational forecast price. The model is extended for many commodities, for partial producer response to more accurate forecast prices, and to include stock holding. In terms of economic surplus, producers and consumers gain from more accurate estimates of demand shift variables, producers gain and consumers lose from more accurate estimates of supply shift variables, and in both cases there is a net society gain.  相似文献   

9.
Livestock pricing policies in many developing countries are often instituted without a good appreciation of the consequences of such policies for allocative efficiency, output and trade. This paper evaluates, in a comparative cross-country context, the objectives and instruments of livestock pricing policy in five sub-Saharan African countries: Ivory Coast, Mali, Nigeria, Sudan and Zimbabwe during the period 1970-86. It assesses the extent to which pricing policy objectives have been attained, and also estimates the effects of price interventions on output, consumption, trade and government revenues in order to draw out lessons for the future. The empirical results indicate that in comparison with real border prices, a certain degree of success was achieved in stabilising real domestic producer prices in the study countries. The results also show that since the early 1980s, there has been a gradual shift away from taxation of producers. However, consumers still appear to gain as much as producers in three of the study countries, with negative consequences for foreign exchange earnings and government revenues. The analysis reveals the importance of domestic inflation and exchange rates as key variables for livestock pricing policies and highlights the need to address the macroeconomic imbalances that cause exchange rate distortions and high domestic inflation at the same time that direct price distortions are being tackled.  相似文献   

10.
Quarantine policy reviews are becoming more sophisticated yet they still focus primarily on the effects of restrictions solely on import-competing producers. A fuller analysis that includes the consumers demonstrates that even if imported diseases were to wipe out a local industry, the gains to consumers might outweigh the losses to import-competing producers from removing a ban on imports. This article provides the simplest partial equilibrium framework for thinking more about the economics of quarantine policy measures using an empirical analysis of Australia's ban on imports of bananas.  相似文献   

11.
World agricultural markets are grossly imbalanced with supplies running well ahead of demand at current depressed world prices. At the heart of the problem is the high protection given to agriculture in many OECD countries. In particular, price supports to farmers are too high and incentives to maintain or expand production too great. The success of the Uruguay Round in achieving greater liberalisation of trade in agriculture will depend on the willingness of participating governments to undertake significant reforms of domestic agricultural policies, with the aim of reducing overall protection to agriculture and switching support measures away from direct producer price support to income aid for specific disadvantaged producers. In some countries, this notion has run up against complex politico-social and structural objectives, which prevent these countries from agreeing to any significant price reduction. Price support policies, however, have been ineffective in the long run in retarding the outmigration of labour from agriculture. Measures involving only quantitative controls on production will be useful in the short run to reduce surpluses but will not solve the underlying problems which the new GATT Round must address.  相似文献   

12.
The welfare impacts of the 1987–91 Canadian "voluntary" 15% lumber export tax and the current 6.51 % U. S. import duty are analyzed using a simultaneous equations model of the softwood lumber market. The results show that U.S. consumers suffer losses 35% to 45% of those endured by Canadian producers. Canadian national welfare was much higher under the voluntary export tax, indicating the Canadian government erred in unilaterally terminating the agreement. In both instances, the U.S. government pursued policies that benefited domestic producers at the expense of U.S. lumber consumers, with no attempt or discussion of compensation. Thus, this appears to be a case of "beggar thy consumer" trade policy.  相似文献   

13.
This paper argues that deepening commodification in Turkish agriculture has changed the lives of farmers in significant ways. Global circuits have swept away the accustomed networks of information, production and marketing which had been largely established and maintained by comprehensive governmental support policies. New institutions have come into the picture establishing the links between small producers and larger markets. With state policy strengthening the domination of the market, prices and demand patterns fluctuate widely leaving small producers vulnerable to market forces and raising the level of risk and insecurity. This situation brings about a rapid de‐ruralization of the population in most regions of the country. In the fertile coastal strip of the southern and western provinces, however, commercial opportunities introduced by global circuits have led to a thriving market in products, land, and labour. Farming of vegetables and fruits for domestic and European markets dominate agricultural production. Seasonal employment, in tourism and in labour‐intensive crops, supplement household incomes, permitting the rural population to remain in the countryside.  相似文献   

14.
Consumption of livestock products in Southeast Asia could continue to increase rapidly, as has been the case in Northeast Asia. The extent to which domestic producers may respond to these demand developments will be influenced by government interventions in both livestock product and feeds markets. The paper analyses the net contribution of livestock product and feed price distortions on the effective rate of protection, and whether intervention in the commodity market is augmented or offset by intervention in the feeds market. While policy-induced distortions were found to exist in the livestock sectors of Thailand and Malaysia, especially in beef and dairy production, the contribution of feeds policies to these distortions was minimal. In contrast implicit taxes on feeds were high in Indonesia and the Philippines. In the latter, support on product prices was sufficient to more than offset the tax on feeds so that effective protection remained positive. But in Indonesia both livestock and feeds policies worked to provide disincentives to livestock production. It is concluded that livestock and feeds policies should be formulated with regard to objectives and priorities within both sectors. This could require that greater emphasis be placed on feeds sector assistance policies that do not affect the price of feeds.  相似文献   

15.
Consumers have responded negatively to agricultural products originating from the Fukushima prefecture after the 2011 Fukushima Daiichi nuclear power plant incident. These consumers’ behavioural changes have caused substantial economic losses for the producers located in contaminated regions through reductions in market prices, consumption quantities and market shares. Remarkably, these losses are observed also for uncontaminated products, posing an opportunity for research in reputation damage. However, existing literature is very rare on empirical modeling of such losses. We utilise the Dixit–Stiglitz demand framework to derive a simple but efficient empirical model that uses market data to quantify reputation damage. This model estimates changes in the perceived quality of a product originating in contaminated regions in relation to those products originating from other competing regions. The model also measures subsequent loss in market share for those products grown in contaminated regions. In our application to Fukushima, results suggest that consumers’ valuation of peaches from Fukushima decreased dramatically (between 22.5% and 23.6%) in the year the nuclear accident occurred, but rapidly recovered in the following years. The results also show that the degree of impact varies across wholesale markets. Fukushima farmers lost about 13.1–18.9% of sales due to reputation damage. Estimates from our proposed models deliver meaningful information in the context of policy interventions such as transfer programmes financed by gainers to compensate reputation losses.  相似文献   

16.
In this article, we explore the role of local production as an attribute in consumer preferences for beef and attempt to quantify consumers’ purchasing behavior with respect to changes in price. We develop and employ a survey instrument using a randomly selected sample of consumers in Eastern Washington and Northern Idaho. Using data from the survey, we use conjoint analysis to estimate own-price elasticities of demand for beef produced using different production technologies and at different distances from purchase site to place of origin. Results show that consumer demand for beef and beef products is highly elastic, and the implications of this for producers and marketers are explored.  相似文献   

17.
In this study, consumers’ willingness to pay for farming, slaughter and processing, distribution and marketing, and government certification information was investigated in Wuxi, Jiangsu Province, China using an experimental auction and real choice experiment based on incentive compatibility of the nonhypothetical elicitation method. No significant differences in consumers’ willingness to pay were revealed by the experimental auction and real choice experiment on the whole, and results from both nonhypothetical experimental methods demonstrated that consumers were willing to pay certain premiums for all four types of traceability information and had the highest willingness to pay for government certification information. These results indicate that consumers trust in pork safety protection under governmental supervision. Moreover, it was found that government certification information played a significant role in improving consumer utility, demonstrating that consumers paid close attention to safety risks in farming. Therefore, this study predicts that the introduction of governmental supervision into the pork traceability system and establishment of a system for collecting traceability information starting from the stage of pig farming will play important roles in meeting consumer demands for pork quality and safety, as well as promoting the development of traceable food policies.  相似文献   

18.
The Uruguay Round trade agreement includes a new programme of work to examine the relationship between trade and environmental policies. Environmental groups remain suspicious that trade liberalisation will undermine or discourage improvements in environmental standards. In this paper, the use of trade measures to protect producers from competition with goods produced under less stringent environmental standards is examined. It is shown that such measures will not improve national welfare, and may undermine environmental policies. Failure of a government to enact appropriate environmental policies constitutes an implicit subsidy, and equity considerations suggest that this will continue to create pressure for changes to the GATT to protect producers who are meeting higher standards.  相似文献   

19.
Following the dismantling of a price-support program, a central bureaucracy is left with a commodity stockpile to dispose. It happened with wheat and feed grains in the U.S. in 1986 and wool in Australia in 1991. It soon may happen in Europe with grains, manufactured dairy products and other commodities which have supported prices. Obvious policies include privatising the stockpile, disposing of the stockpile by a central bureaucracy and quarantining the stockpile from the market. Each policy imposes constraints on disposal based, perhaps, on judgments of political acceptability to producers and government. In this article, optimal rules for production and disposal are derived and solved and a new policy is proposed. Then the model is applied to the disposal of Australia's wool stockpile. Results show that centralised disposal will almost always be preferred to privatisation of the stockpile. Centralised disposal is also preferred to quarantining the stockpile if interest rates are high, but quarantining is preferred if interest rates are low. Centralised disposal and quarantining are not optimal, however. Optimal production and disposal combines the efficiency of privatisation with the market power of centralised disposal. To achieve this, the property rights to the stockpile can be redefined using payment-in-kind certificates and individual transferable entitlements. The payment-in-kind certificates assign ownership of the stockpile to individual producers who then make both production and disposal decisions. The individual transferable entitlements allow the industry to produce efficiently and extend market power from the central bureaucracy to producers. For the Australian wool stockpile, optimal production and disposal would benefit the industry by an estimated $2.7 billion.  相似文献   

20.
The Food Security Act of 1985 sets the United States (U.S.) policy course for the five years, 1986–1990, in the areas of farm product prices and farmer incomes, agricultural production, food aid, and trade in agricultural products. It is clearly an evolution of past policy, deeply rooted in the institutional processes of participatory policymaking. The Act will have important implications for not only domestic producers, consumers, agribusinesses, and taxpayers, but alto product agricultural exporters and importers around the world. Just as it was substantially, affected by the current loss of export markets and the economic crisis in the U.S. agricultural sector, its implementation and impacts will be affected in the future by the unpredictable weather, macroeconomic conditions around the world, and international trading policies. This article examines the development of the policy embodied in the Act and analyzes its primary economic implications. Although most provisions of the U.S. agricultural price and income policy that had evolved over the past half century were continued, important changes were made. The resulting policy closely mirrored the preferences revealed from research concerning farmers and leaders of national agricultural and food interest groups. Primary changes from the previous 1981 Act were: lengthening the duration to five years; substantial lowering of the minimum price support levels; permitting a gradual decline in the minimum target prices; providing for a whole dairy herd buyout program; establishing export enhancement initiatives through credit, promotion, and export payment-in-kind (PIK); and initiating major efforts to increase farmland conservation and withdrawal of fragile lands from production. Likely implications of the new Act include: (1) lower product prices for agricultural producers around the world, and also farmer incomes if there is no income protection from national policies; (2) a similar but a less proportionate impact on consumers; (3) a substantial burden on the U.S. Treasury, and possibly those of the other nations as well, depending upon the type of policies followed; and (4) likely intensification in the immediate future of the economic conflicts and negotiations between major agricultural trading nations of the world. Research played a vital role in the development of the U.S. 1985 Act. Given the turbulent, uncertain, and important nature of the agricultural and food sector in the world, research is challenged to provide more and better knowledge for future policymaking.  相似文献   

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