Effects of supermarket monopsony pricing on agriculture

Potential effects of alleged monopsony pricing of farm food products by supermarkets on farm product prices, quantities, incomes and land values are assessed relative to competitive behaviour. A long‐run comparative static equilibrium model is used. For export‐competing and import‐competing products, the farm food input supply curve facing the supermarkets is close to perfectly elastic and this limits monopsony behaviour. At the margin, the opportunity to reallocate agricultural land between traded and nontraded farm products means a highly elastic supply function for nontraded food inputs facing supermarkets and very limited monopsony effects.     

TESTING THE COMPETITIVENESS OF FOOD PRICE SPREADS

This paper develops and illustrates a test of the competitiveness of food price spreads. The test does not require information on the structure of the food industry or estimation of conjectural variations, but rather the prices of the intermediate inputs used to produce the raw farm product and the prices of the intermediate inputs that are combined with the raw farm product to produce the final consumer good. The test is applied to the US farm/wholesale beef market.     

A QUARTERLY MODEL OF THE AUSTRALIAN AGRICULTURAL SECTOR*

Several farm sector econometric models are reviewed initially and the aggregation problem highlighted. A thirty-equation model of the Australian agricultural sector is specified in which farm output, stocks and exports and the domestic demand for farm products are endogenous, as well as farm, export and retail prices. Disaggregation is into food and non-food components of unprocessed output, and the processing of food is traced through to final demand. The model is estimated by a modified 2SLS procedure using quarterly data covering the period 1960-1970.     

Farmers' Buying Selection Criteria of Agricultural Inputs

The Malaysian farmers' selection criteria of agricultural inputs, attitudes towards selecting the inputs, and the influence of socio-demographic factors in the selection of inputs were examined by using a personal interview with vegetable farmers. It was found that farmers perceived quality as most important criteria in selection of inputs, while advertising was perceived as least important. Vegetable farmers have favourable attitudes towards quality, product availability and fair prices, and less favourable attitudes towards advertising influence. The socio-demographic factors such as income, farm size, geographical distribution, education level, and ethnic group (race) have some influence on farmers' selection criteria of agricultural inputs.     

Price Variability and Industrial Concentration in U.S. Food Industries

This paper focuses on the sources of intra‐industry price variability in US food industries during a period of increasing concentration, while accounting for the impact of variations in prices of primary agricultural products. Results suggest that intra‐industry price variability in food industries increases with their respective mean rate of inflation and product heterogeneity. However, industrial concentration lowers the sensitivity of relative prices to changes in the mean rate of inflation. Hence, static welfare losses to consumers from increasing concentration in food industries, a subject of recent and intensive investigation, can partly be offset by gains such as reduced price variability.     

Changes needed in agricultural policy for female-headed farm families in tropical Africa

The decline in per-capita agricultural production has been reversed somewhat in tropical Africa by the structural adjustment programs which have increased producer prices, liberalized marketing and devalued currencies. But the 30% of smallholder farm households which are female-headed will not be assited much due to their special constraints of shortages of labor and credit, lack of extension visits and appropriate labor-saving technologies. For these households, the authors argue, improved extension services, credit for agricultural inputs, small ruminant animals and poultry, labor-saving devices and craft inputs will be necessary to increase their incomes and levels of living.     

Public agricultural R&D over the past half century: an emerging new world order

Recent trends in farm productivity and food prices raise concerns about whether the era of global agricultural abundance is over. Agricultural R&D is a crucial determinant of agricultural productivity and production, and therefore food prices and poverty. In this article, we present entirely new evidence on investments in public agricultural R&D worldwide as an indicator of the prospects for agricultural productivity growth over the coming decades. The agricultural R&D world is changing, and in ways that will definitely affect future global patterns of poverty, hunger, and other outcomes. The overall picture is one in which the middle‐income countries are growing in relative importance as producers of agricultural innovations through investments in R&D, and have consequently better prospects as producers of agricultural products.     

Food Security and Agricultural Protection in South Korea

South Korea has been pursuing food self-sufficiency using high tariffs and high administrative prices in key agricultural and food markets. Using a dual approach to trade and trade restrictiveness indices, we analyze the impact of these market distortions on welfare and trade volume. Then, we compute second-best distortions, which minimize the welfare cost of meeting observed levels of self-sufficiency and production. We rationalize these second-best distortions to what could be claimed as legitimate protection under a "food security" (FS) box in World Trade Organization (WTO) negotiations. FS-box protection is sensitive to changes in the definition and the extent of the FS objectives. We show that FS via production targets and reliance on imports would be more palatable to consumers and trade partners, while preserving income transfer to the farm sector.     

Toward a green revolution in Africa: what would it achieve,and what would it require?

The current global food crisis has reemphasized the costliness of Africa's failure to achieve food security and poverty reduction. The instrument by which other more successful developing countries achieved these outcomes was a “Green Revolution” in agriculture. While previous research has provided largely discursive appraisals of the viability of an African Green Revolution, this article adopts a more rigorous methodology to address that question. First, an economy‐wide multimarket model, augmented with existing poverty–growth elasticities, is developed to assess the likely impacts of a rapid acceleration in food production (of the kind witnessed in previous Green Revolutions) on food prices, consumption and demand, farmer revenue, and poverty. Our results suggest that a rapid growth in staple production, together with more integrated regional markets, would reduce food prices by roughly 20–40% for consumers and 10–20% for producers among the major crops. This translates into a large rise in farm revenues, annual agricultural growth rates of 6.5% or higher, broader income growth and food security, and over 70 million Africans being lifted out of poverty. The article concludes by emphasizing the kinds of fundamental policy actions and resources that would be required for achieving these outcomes.     

发展绿色食品加工产品的难点及建议

绿色食品加工,就是以绿色农、畜等产品为原料所进行的食品加工过程。发展绿色食品加工产品,对于防范风险、满足消费者需求、提升企业效益、增加农民收入等具有重要作用。而结合现阶段绿色食品加工发展实际来看,还存在质量监管体系、产品工艺水平、产品原料供应以及品牌竞争力等方面的问题。对此,本文就完善质量监管体系、提升产品加工工艺、稳定原料供应以及发挥品牌价值效应提出了相应的建议。     

FACTOR MARKET INCIDENCE OF AGRICULTURAL TRADE LIBERALIZATION: SOME ADDITIONAL RESULTS

Liberalization of trade implies changes in producer prices, which has consequences for farm income, agricultural employment and asset values. The relative incidence of the effect of changes in prices on fixed factors depends on the rclative magnitude of the Morishima elasticities of substitution in agricultural production.     

Markets and welfare effects of food fraud

This study develops a theoretical framework of heterogeneous consumers and producers and imperfectly competitive food companies to analyse the system‐wide market and welfare effects of food fraud in the form of food adulteration and mislabelling. The results show that, while the price impacts of food fraud are product‐specific with the equilibrium prices of high‐quality and low‐quality products moving in different directions, the equilibrium quantities depend on the relative magnitude of the demand and supply effects of food fraud. Regarding the welfare effects of food fraud, they are shown to be highly asymmetric across different consumers and producers. In addition to enabling the disaggregation of the welfare effects of food fraud, the explicit consideration of agent heterogeneity, asymmetries in the probability of fraud detection and the endogeneity of the producer quality choices also enables the derivation of a key result of this study; contrary to what is traditionally believed, both low‐quality and high‐quality producers can have economic incentives to commit fraud. The group that is more likely to cheat is determined by the social attitudes towards fraudulent behaviour, the enforcement policy parameters and the relative magnitude of the demand and supply effects of food fraud. A comparison of the market effects of mislabelling and food adulteration reveals that, while the equilibrium quantity of the high‐quality product is higher in the presence of mislabelling, producers are more likely to mislabel than adulterate their products.     

Economic Liberalization and Smallholder Productivity in Tanzania. From Promised Success to Real Failure, 1985–1998

In the mid-1980s, Tanzania adopted a programme for economic liberalization of the entire economy, including agriculture. After pressure from the IMF and the World Bank in particular, but also from most of the bilateral donors, agricultural producer and input prices were decontrolled, panterritorial prices were abolished, subsidies were removed and trade in agricultural products and inputs was to a large extent taken over by private traders. The international donor community promised that economic liberalization would provide a strong stimulus to Tanzanian agriculture, resulting in increasing yields, increased labour productivity, rising agricultural production and higher incomes. However, available data show that, as far as food crop production is concerned, this promise has not been fulfilled. Even compared to the 'crisis years' 1979–1984, labour productivity, yields and production per capita of food grains stagnated or declined up to the end of the 1990s. Some causes of this failure are discussed.     

Global food demand,productivity growth,and the scarcity of land and water resources: a spatially explicit mathematical programming approach

In the coming decades, an increasing competition for global land and water resources can be expected, due to rising demand for food and bio‐energy production, biodiversity conservation, and changing production conditions due to climate change. The potential of technological change in agriculture to adapt to these trends is subject to considerable uncertainty. In order to simulate these combined effects in a spatially explicit way, we present a model of agricultural production and its impact on the environment (MAgPIE). MAgPIE is a mathematical programming model covering the most important agricultural crop and livestock production types in 10 economic regions worldwide at a spatial resolution of three by three degrees, i.e., approximately 300 by 300 km at the equator. It takes regional economic conditions as well as spatially explicit data on potential crop yields and land and water constraints into account and derives specific land‐use patterns for each grid cell. Shadow prices for binding constraints can be used to valuate resources for which in many places no markets exist, especially irrigation water. In this article, we describe the model structure and validation. We apply the model to possible future scenarios up to 2055 and derive required rates of technological change (i.e., yield increase) in agricultural production in order to meet future food demand.     

The Food Crisis,Industrialized Farming and the Imperial Regime

This paper argues that the food crisis cannot solely be equated with abrupt food price increases or seen as merely market induced. The unprecedented price increases of the first half of 2008, and the extremely low prices that followed, are expressions of a far wider and far more persistent underlying crisis, which has been germinating for more than a decade. It is the complex outcome of several combined processes, including the industrialization of agriculture, the liberalization of food and agricultural markets and the rise of food empires. The interaction of these processes has created a global agrarian crisis that has provoked the multifaceted food crisis. Both these crises are being accelerated through their interactions with the wider economic and financial crisis.     

实际价格、粮食可获性与农业生产决策——基于农户模型的分析框架和实证检验

按照市场一价定律的逻辑,所有生产者和消费者在市场上面临同一个价格并据此作出生产或消费决策。然而,农产品生产者和消费者的双重身份却导致农户在同一个农产品市场上得到或付出不同的价格,其差异主要取决于运销成本。因此,影响农户生产或消费决策的是其实际获得或付出的价格而非统一的市场价格。此外,出于对粮食安全的追求,农户所在地区的...     

PROJECTION MODELS FOR U.K. FOOD AND AGRICULTURE*

Successful policy planning depends to a large extent on being able to predict the consequences of alternative measures. In the case of agriculture, it is important to know how the future pattern of supply and demand in this sector will be affected by government action on specific issues such as farm price support, and by expected trends in macro-economic variables such as national incomes and population. This paper illustrates the application of a model of U.K. agriculture to the projection of changes in the production and consumption of food and agriculture products between now and 1975. The demand projections show the effect of important levies, and of joining the E.E.C, on future expenditure on food, while the supply projections show how the output of a number of agricultural commodities will be affected by adjusting farm prices towards E.E.C. levels.     

PRODUCTION TECHNOLOGY AND INPUT ALLOCATIONS IN SRI LANKAN MULTICROP FARMING

A primal production analysis is conducted of 182 farm households producing multiple outputs in the Sri Lankan dry zone. The approach involves systems estimation of the production functions with first-order equations for variable inputs and permits recovery of the production technology for each crop. Land and family labour are regarded as constraining inputs. Shadow prices are computed for the constraining inputs and yield important implications for increasing household profits. Evidence of global homotheticity in a subset of three inputs is found for three of the crops. Weak separability is rejected in all tested subsets except for fertiliser and chemicals used in the production of vegetables. Input demand elasticities are computed for allocations satisfying necessary and sufficient conditions for profit maximisation. Highly elastic conditional input demands and output supplies are implied.     

Linkages between the farm and nonfarm sectors at the household level in rural Ghana: a consistent stochastic distance function approach

This article explores the effects within households of an expanding rural nonfarm (RNF) sector in Ghana. We ask whether the growing RNF sector allows for economies of diversification within farms, how it affects household input demands, and whether it has measurable effects in overall household production efficiency. We explore the intrahousehold linkages between agricultural and RNF activities, first assuming perfectly competitive input and output markets and then with market failures, in particular missing labor and credit markets. We then measure these linkages using a household level input distance function, finding high levels of inefficiency in Ghanaian farms. Also, there are cost-complementarities between the RNF sector and the agricultural sector, particularly with food crops in which the poorest tend to specialize. The expansion of the RNF sector increases demand for most inputs including agricultural land. Finally, we show that smaller farms tend to be more efficient, and that RNF output is helping the farm household to become more efficient, but the latter result is not robust.     

The Demand for Food Quality in Rural China

Many studies of food demand do not use actual prices but unit values, obtained by dividing expenditures by the quantity consumed. This can bias empirical analyses because unit values are not exogenous market prices; they reflect household food quality choices within each food category. This article develops a framework for assessing the resulting bias in income and price elasticities of demand and applies the framework to data for rural China. Empirical results indicate that households in rural China tend to consume higher-quality food as income increases, with a greater sensitivity to income for basic foods than for luxury foods.