Substitution between U.S. and Canadian Wheat by Class

The imports of hard red winter and durum wheat from Canada has been a source of contention among U.S. wheat growers, due to the likeness between domestic and imported Canadian wheat. This has also been investigated as a source of material injury to the U.S. market. We examine the relative substitution between U.S. and Canadian wheat, by class, by treating wheat as an input in flour production. We find that while U.S. hard red spring wheat and U.S. hard red winter wheat are economic substitutes, there is limited price substitution between U.S. and Canadian durum and U.S. and Canadian hard red spring wheat. Quality differences from the millers’ perspective may be the reason driving the import demand for hard red spring and durum wheat from Canada. Les importations de blé de force rouge d'hiver et de blé dur en provenance du Canada sont une source de conflit chez les producteurs de blé des États‐Unis, en raison de la ressemblance entre le blé produit aux États‐Unis et le blé importé du Canada. Ce point, jugé comme une source de préjudice important au marchéétatsunien, a également fait l'objet d'une enquête. Nous avons examiné la substitution relative du bléétatsunien et canadien, selon la classe, en traitant le blé comme un intrant dans la production de farine. Nos résultats ont indiqué que, bien que le blé de force roux de printemps et le blé de force rouge d'hiver soient des substituts économiques, la substitution en raison du prix demeure limitée entre le blé dur étatsunien et canadien et entre le blé de force roux de printemps étatsunien et canadien. Les différences de qualité perçues par les meuniers pourraient être la raison qui stimule la demande d'importation de blé de force roux du printemps et de blé dur en provenance du Canada.     

Price Discrimination in the Context of Vertical Differentiation: An Application to Canadian Wheat Exports

The ability of the Canadian Wheat Board (CWB) to price discriminate in wheat exports is examined. The conceptual model shows that the CWB's ability to exploit cost differences in pricing depends on the extent of differentiation between Canadian and U.S. wheat. This model is implemented using monthly confidential price data for exports to four markets from 1982 to 1994. The empirical results support the conclusions that (1) the CWB has market power emerging from product differentiation, (2) the CWB price discriminates across export markets, and (3) Alchian–Allen effects are important in pricing in markets valuing quality such as Japan and the United Kingdom.     

Relationships between U.S. and Canadian Wheat Prices: Cointegration and Error Correction Approach

This paper examines relationships between U.S. and Canadian wheat prices using the cointegration and error correction approach. The use of the error correction model is appropriate because U.S. and Canadian wheat prices are first-differenced stationary and cointegrated. The results suggest that both U.S. durum and hard spring wheat prices respond to restore equilibrium relationships with the corresponding Canadian price, while the Canadian prices do not. That is, the structure of the respective policies is such that the Canadian markets are largely insulated from influences flowing directly from the U.S., while U.S. markets are not insulated from Canadian influences. These results could be interpreted to support the contention that Canadian production subsidies and the implicit export subsidies would tend to undermine the U.S. price support program. The results also support the price leadership role for Canada in the durum and hard spring wheat markets. The implication is that with respect to durum and spring wheats, U.S. policies to artificially support domestic prices are not effective over the long run. Les rapports entre les prix de blé canadiens et américains sont étudiés á partir des analyses basées sur la cointégration et la méthode de correction des erreurs. L'emploi de la méthode de correction des erreurs est approprié car les prix de blé canadiens et américains sont cointegres et stationnaires quand Us sont exprimes en changements (first differences). Les résultats montrent que les prix du blé dur (durum) et du blé panifiable du printemps (hard spring) aux États- Unis reagissent à l'évolution des prix canadiens pour retablir le rapport d'équilibre tandis que ceux du Canada ne sont pas influencés par les désequilibres. Ce résultat est explique par les differences entre les structures des politiques agri-coles quifont que les marches canadiens sont largement isoles des influences en provenance des États-Unis, ce qui n'estpas le cas pour les marches américains. Ces résultats pourraient vouloir dire que des subventions canadiennes à la production et à l'exportation ont mine les programmes américains de sou-tien des prix. Us sont également compatible avec l'idée que le Canada établit les prix sur ces marchés.     

An Examination of the Relationship Between U.S. and Canadian Durum Wheat Prices

Durum wheat is one of the commodities for which there is intense trade competition between the United States and Canada. This article examines the relationship between Canadian and U.S. durum wheat prices using cointegration and an asymmetric error correction approach. The overall results suggest that a long run relation holds between the U.S. and Canadian durum wheat prices. The U.S. price responds to restore the equilibrium relationship with the corresponding Canadian price, while the Canadian price evolves independently. Using tests for structural change it is revealed that changes in Canadian domestic policy (the repeal of the WGTA) had an effect on this long run relation. Since the withdrawal of the WGTA, quality differences in durum wheat for both countries seem to matter in the dynamics and integration of U.S. and Canadian durum wheat prices. Le blé dur est l'une des denrées pour lesquelles les États‐Unis et le Canada se livrent une concurrence féroce. Le présent article examine la relation entre les prix du blé dur américain et canadien en utilisant la cointégration et un modèle à correction d'erreur asymétrique. Les résultats globaux semblent indiquer qu'il existe depuis longtemps une relation entre les prix du blé américain et canadien. Le prix américain réagit pour rétablir la relation d'équilibre avec le prix canadien correspondant, tandis que le prix canadien évolue de façon indépendante. Des tests effectués pour vérifier les répercussions des changements structurels ont indiqué que des changements dans la politique intérieure canadienne (notamment l'abrogation de la Loi sur le transport du grain de l'Ouest ‐ LTGO) ont eu une influence sur cette relation. Depuis l'abolition de la LTGO, des différences de qualité de blé dur dans les deux pays semblent avoir de l'importance dans la dynamique et l'intégration des prix du blé dur canadien et américain.     

Spatial analysis of grey water in Italian cereal crops production

Explorative spatial data analysis (ESDA) is a set of tools to emphasise spatial structure in case of localised data and widely used for testing effects in the case of environmental data. Grey water indicator is considered as a reliable water pollution indicator able to show the quality of water, useful in agriculture and crops production. In this paper, an analysis on the presence of spatial effects in the grey water indicator for crops production is proposed. This analysis is carried out on four cereal crops (i.e., corn, barley, durum wheat and soft wheat) in Italian regions for the period 2011–2015. The output reveals the presence of spatial effects especially for corn which shows a high level of polarisation between South and North regions. ESDA analysis indicates that grey water descending from cereal crops production is characterised by a persistent presence of positive spatial dependence and spatial heterogeneity. Policy makers should take into account those effects to improve the bundle of policies in the field of water management.     

THE ECONOMICS OF - WHEAT PRODUCTION IN MOROCCO

A representative farm policy impact model was developed using linear programming and primary survey data. The model was used to estimate farm-level effects of proposed national government policies aimed at increasing food security through greater bread wheat production. The four policy options analysed included the introduction of a bread wheat variety resistant to an insect pest, an increase in the official bread wheat support price, potentially unlimited availability of nitrogen fertiliser, and rationing of nitrogen fertiliser at 500 kg per farm. The various policies increased farm income between 2.45 and 18 percent, as farmers made trade-offs between the production of bread wheat and the more profitable durum wheat. Adjustments were made by farmers in the model to meet government-targeted levels of bread wheat production in order to support national food self-sufficiency at minimum cost. Simultaneously, the resources freed were used to produce more durum wheat. The results suggest a need to analyse interregional and international comparative advantages in wheat production prior to implementing proposed policies aimed at increasing bread wheat output.     

Land use scenario development as a tool for watershed management within the Rio Mannu Basin

The Rio Mannu River Basin (Sardinia, Italy) is undergoing a process of agricultural intensification. Like many Mediterranean areas, this basin is characterized by water shortages and diffuse pollution from agricultural sources. Hence the objective of this study was to develop possible land use and land management scenarios that could constitute an alternative to the current watershed management. Several land use and land management scenarios were formulated and analyzed with local stakeholders, and two were selected and simulated as realistic in consideration of the socio-economical aspects of the study area. Scenario 1 involves agricultural practices that include a reduction in fertilizer use to meet the Water Framework Directive requirements for “good” status of water bodies. Scenario 2 introduces rapeseed cultivation, replacing durum wheat in a small area, to investigate the impact of biofuel plant cultivation on water quality. Each option was assessed by considering the effects on water quality, crop yields and economic benefits. The Soil and Water Assessment Tool (SWAT) model was applied to simulate hydrological processes and evaluate current and future nutrient loads. This model requires adequate streamflow data for calibration and validation. However, as is the case for many Mediterranean basins, insufficient data were available. Therefore, a methodology was developed and tested to calibrate hydrological processes based on the transposition of a parameter set from a gauged catchment located in the same region. This study suggests that a sound use of fertilizers could substantially reduce the amount of nutrients flowing into surface waters, although the effects of such a policy on crop yield and farm income would be negative in some cases. Moreover, the results clearly predict that the replacement of durum wheat with rapeseed (a biofuel crop), could offer a margin of profit, but would have a negative impact on water quality due to increased nutrient losses. Consequently, this option is unsuitable for this area. Furthermore, it can be inferred from these results that the promotion of the use of energy from renewable sources may have a negative impact on the objectives of the EU Water Framework Directive. Clearly, this process needs to be regulated, taking into account environmental and socio-economical aspects.     

DETERMINANTS OF CHANGE IN THE NORTH AMERICAN FEEDER-CATTLE ECONOMY

Changing flow patterns characterize the North American cattle industry, which are having a significant impact on all aspects of Canadian agriculture. A brief review of important changes taking place in the feeder cattle industry is given together with an analysis of forces influencing the changing interregional economic relationships.
The results suggest an increasing rate of adjustment may be needed in the future as the economic variables and technological advances responsible for much of the change in the past continue to influence the Canadian cattle industry. The impact of change will not occur evenly across all areas and segments of the industry with the interregional trends that have developed particularly the expansion in flows from Western Canada to the Western United States showing no sign of slowing down. Eastern Canada may be under increasing pressure to expand either its imports of feeder cattle and dressed beef or develop its own feeder supply.     

Economic substitution for US wheat food use by class*

Wheat for food use is conceptualised as an input into flour production and demand is derived from an industry profit function to quantify price responsiveness and economic substitutability across wheat classes. Price and substitution elasticities are estimated for hard red winter, hard red spring, soft red wheat, soft white winter and durum wheat. In general, hard red winter and spring wheat varieties are much more responsive to their own price than are soft wheat varieties and durum wheat. Substitution elasticities indicate that hard red winter and hard red spring wheat are economic substitutes for milling purposes.     

Farmer management of production risk on degraded lands: the role of wheat variety diversity in the Tigray region, Ethiopia

This article investigates the effects of wheat genetic diversity and land degradation on risk and agricultural productivity in less favored production environments of a developing agricultural economy. Drawing production data from a household survey conducted in the highlands of Ethiopia, we estimate a stochastic production function to evaluate the effects of variety richness, land degradation, and their interaction on the mean and the variance of wheat yield. Ethiopia is a center of diversity for durum wheat and farmers manage complex variety mixtures on multiple plots. Econometric evidence shows that variety richness increases farm productivity. Variety richness also reduces yield variability but only for high levels of genetic diversity. Simulations with estimated parameters illustrate how planting more diverse durum wheat varieties on multiple plots contribute to improving farmer's welfare.     

Searching for farmland preservation markets: Evidence from the Southeastern U.S.

Farmland preservation is a topic of much discussion in many areas of the United States, but of little action. Only 1.6 million acres of U.S. farmland are permanently protected nationwide, a number not too different from some estimates of annual losses of farmland to development. While a number of studies have estimated the non-market benefits of preserved farmland (cf. Wichelns, D., Kline, J.D., 1993. The impact of parcel characteristics on the cost of development rights. Agricultural and Resource Economics Review 22 (October) 150–158), this study is the first to focus on the potential for a market for farmland preservation. Using primary data collected from farmers and citizens specifically to address this issue, we estimate the supply of and demand for farmland for preservation. Separate models are estimated for both privately and publicly run preservation programs. Demand is estimated under private-voluntary, public-voluntary, and public-mandatory scenarios. The results show that both public and private programs can be successful. The market capable of preserving the most acres is a tax-funded, state-run program which could permanently preserve over 200,000 acres in 5 years.     

Who Receives Farm Government Payments?

If we do not systematically attempt to collect data and assess distributional impacts, we shall always be surprised by the many unintended consequences of our public decisions. (Bonnen 1969, p. 447) Direct government payments to farmers have tripled in the last half of the 1980s. Market price support programs (for example, the Western Grain Transportation Act, among others) and supply management regulation continue to be topics of debate among policy analysts. Certainly the debate has become intensified by the discussions surrounding the Canada-U.S. Trade Agreement and the Uruguay Round of talks under the General Agreement on Tariffs and Trade. When all census farms are distributed across gross sales classes, the “selected” programs included in this study tend to be more concentrated among the mid-sized farms than are aggregate gross sales. However, if one considers Prairie grain farms distributed across farm size classes measured in terms of grain acres, gross sales, net farm income (specifically, NCFIWF) and the net “benefits” of “selected” government programs are similarly concentrated. For example, Prairie farms with 320 to 599 acres of grain report 24% to 26% of each of these four items.²⁶ The “selected” programs included in this study tend to pay about the same size of payout per farm household, regardless of the size of household income. We obtain this result because farm size in terms of gross farm sales tends to be the same, regardless of the size of household total net income. Across the spectrum of farm financial stability classes, the net “benefit” of the “selected” programs in this study tend to be distributed similarly to gross farm sales. The results depend on exactly how one implements the classification but more than two thirds of gross sales and more than two thirds of net “benefits” of “selected” programs accrue to farms with a higher level of financial stability. Across the spectrum of rates of return on equity as an indicator of farm efficiency, about one third of gross sales and one third of net “benefits” of “ selected” programs accrue to farms with a rate of return on equity of 10% or more. The potential impact of deregulation of supply management depends on one‘ s assumption. Three scenarios are presented here and, in each case, both “winners” and “losers” are identified. Between 4% and 37% of households on farms with quota would move from above to below the Statistics Canada low-income cutoff (LICO), depending on the scenario under consideration. However, in each seen-ario, there are cases of households moving from below to above LICO as a result of our calculated impact of deregulating supply management. This paper takes its lead from Bonnen's observation about “unintended consequences.” We do not offer an “evaluation” of any government program. Our sole objective is to illustrate “distributional impacts” so that all individuals in the policy debate may speak from an informed perspective. This paper represents an initial step in developing an “informed perspective.” As the first note to this paper indicates, an important ancillary objective is to illustrate the potential of Statistics Canada databases to provide tabulations to answer specific Questions posed by researchers and policy analysts.     

Farm Size,Technology Adoption and Agricultural Trade Reform: Evidence from Canada

Using detailed census data covering over 30,000 farms in Alberta, Saskatchewan and Manitoba, Canada, we document the vast and increasing farm size heterogeneity, and analyse the role of farm size in adapting to the removal of an export subsidy in 1995. Consistent with the Alchian-Allen hypothesis, the increase in per-unit trade costs due to the reform was associated with farms of all sizes shifting their production of crops from low value wheat to higher value canola. We find that switching to new labour-saving tillage technologies and away from summerfallow in response to the large negative shock to grain prices caused by the reform varied across the farm size distribution. We develop a theory of heterogenous farms and technology adoption that can explain our findings.     

Regional economic impacts of a plant disease incursion using a general equilibrium approach*

The present study uses a dynamic multiregional computable general equilibrium (CGE) model to estimate the micro‐ and macroeconomic effects of a hypothetical disease or pest outbreak. Our example is a Karnal bunt incursion in wheat in Western Australia. The extent of the incursion, the impact of the disease or pest on plant yields, the response of buyers, the costs of eradication and the time path of the scenario contribute to outcomes at the industry, regional, state and national levels. We decompose the contribution of these individual direct effects to the overall impact of the incursion. This might provide some guidance regarding areas for priority in attempting to eradicate or minimise the impacts of a disease or pest. The study also introduces a theory of dynamic regional labour adjustment in which economic events may lead to both real wage differentials and worker migration between regions.     

河北省冬小麦—夏玉米干旱灾害风险评估

目的 通过分析河北省冬小麦和夏玉米的干旱灾害风险的时空分布格局,从致灾因子危险性、承灾体暴露性、环境敏感性、防灾减灾能力4个因子出发确定10个指标,为河北省农业防旱抗灾工作提供科学支持。方法 文章基于自然灾害理论,利用2000—2018年河北省气象站点数据,计算水分亏缺指数,并通过建立农作物减产率和水分亏缺指数的关系来确定不同干旱等级的临界阈值,建立基于信息扩散理论的干旱危险性评估模型。利用遥感数据以及统计年鉴数据,建立承灾体暴露性模型、环境敏感性模型和防灾减灾能力模型,在此基础上,对河北省冬小麦和夏玉米不同生育阶段进行干旱灾害综合风险评估。结果 （1）将信息扩散模型应用于小样本事件中,弥补资料不足带来的缺陷,可对不同级别的干旱进行风险评估;（2）干旱发生程度以轻度干旱和中度干旱为主,发生严重干旱的概率极低,致灾因子是影响旱灾程度的关键因素;（3）冬小麦和夏玉米在不同生育阶段风险的空间分布是不均的,高风险区和中高风险区呈现零星点状分布,冀中和冀南综合风险比较高,防灾减灾能力在一定程度上缓解了旱灾对该区的影响力度,而对于冀东地区来说,承灾体的暴露性以及防灾减灾能力决定了旱灾对该区的影响力度。结论 因此,建立的冬小麦和夏玉米不同生育期干旱灾害风险评估模型可有效地识别农业旱灾高风险区,服务于农业生产实践,可为防灾减灾提供支持。     

The Market Structure and Price Competition in China's Wheat Import Market:

This paper reveals that wheat exporters to China compete in an imperfectly competitive market. U.S. wheat exports face strong price competition from Argentina, Australia, Canada, and the European Community, but has a highly elastic demand in China. By adopting an aggressive promotion policy, the U.S. could reduce the market shares of Argentina and Canada. China would shift to wheat from Argentina, Australia, and Canada if U.S. wheat exports were interrupted because of high prices or non-price trade frictions. An expansion in China's wheat imports would accrue to wheat from Argentina and the U.S.     

Congestion and Distribution of Rents in Wheat Export Sector: A Canada–U.S. Cross‐Border Comparison

In Canada, average grain freight rates are regulated via the Maximum Revenue Entitlement (MRE), while on the US side of the border grain rates are subject to very little oversight. We use this natural experiment to explore how the MRE regulation has impacted freight rates and the distribution of rents in the wheat supply chain since 2012. On both sides of the border, when large crops have exceeded the short‐term capacity of grain export channels to move the crop, export basis has increased and reduced producer prices. In locations not subject to barge competition, US grain freight rates are higher than Canadian rates and are bid up further during periods of congestion. In Canada, MRE regulation redistributes rents away from railways toward grain companies and producers. These higher grain handling margins have increased the incentives to build additional port terminal capacity in the post‐CWB single desk environment. Au Canada, les tarifs marchandises moyens des céréales sont règlementés par le Revenu admissible maximal (RAM), tandis qu'aux États‐Unis, les tarifs céréaliers font l'objet de très peu de suivi. Au moyen de cette expérience naturelle, nous explorons l'impact du RAM sur les tarifs marchandises et sur la distribution des rentes dans la chaine d'approvisionnement du blé depuis 2012. Des deux côtés de la frontière, lorsque de vastes cultures ont excédé la capacité à court terme des voies d'exportation céréalières pour distribuer leurs récoltes, le seuil d'exportation augmente et réduit les prix des producteurs. Là où ils ne sont pas assujettis à la compétition de barges, les tarifs marchandises céréaliers américains s'avèrent plus élevés que les tarifs canadiens et se voient encore surenchéris lors de période de congestion. Au Canada, la règlementation du RAM redirige les rentes des compagnies ferroviaires aux entreprises et producteurs céréaliers. Ces marges de manutention plus élevées ont augmenté les incitatifs pour accroître la capacité des ports‐terminaux dans un environnement à pupitre unique, post Commission canadienne du blé.     

我国小麦生产、消费和贸易的现状分析

[目的]小麦是在全球范围内广泛种植的一种非常重要的粮食作物,在三大粮食作物中保持着收获面积第一的地位。中国既是世界上最大的小麦生产、消费国,也是世界小麦贸易大国。全面多角度地分析我国小麦的供需现状,找出小麦产业发展面临的难题,提供科学合理政策建议,对于优化小麦生产和促进小麦贸易都具有积极意义。[方法]利用2007-2016年的统计数据,采用对比分析法对近年来我国小麦的生产、消费和进出口贸易情况进行研究,通过国际竞争力指标分析法测算了10年间我国小麦国际贸易竞争力水平,并与小麦主要出口国进行比较。[结果](1)我国小麦总体生产能力稳步提升,2016年小麦产量已达到1.29亿t,小麦的生产区域主要集中于河南、山东等省份,大部分省份仅少量种植小麦,小麦的成本收益率相对较低,净利润不断走低。(2)小麦消费量平稳增加,我国小麦的消费量达到1.16亿t,口粮消费占比80%,消费量较大的省份也多分布在小麦主产区,中部地区省份消费缺口相对较大。(3)小麦的贸易量趋向合理,进口量达453万t,我国小麦的供需总体上保持了平衡,但小麦国际贸易逆差较大,小麦的国际竞争力较弱,小麦进口来源过于集中在加拿大、美国等小麦生产大国的状况并未改善,好在哈萨克斯坦和俄罗斯等新兴小麦大国的兴起为我国小麦的多元化贸易提供了契机。[结论]我国要坚持小麦生产以我为主的战略,做好政府服务和市场导向的有机结合,增加农业投入促进小麦高效优质生产,加大科技进步对小麦生产的贡献,合理利用国际市场等措施来保障小麦充分供给,确保国家粮食安全。     

Wheat stocks and the cointegration of wheat prices

We examine the effect of wheat stocks on the relationship between port and inland wheat prices in western Canada after the dissolution of the Canadian Wheat Board in 2012. Standard statistical tests find no evidence that the port price is cointegrated with inland prices. We argue that large harvests in 2013–2014 and 2014–2015 are responsible for this lack of cointegration. A simple theoretical model demonstrates how wheat stocks drive a wedge between inland and port prices. After including wheat stocks in the cointegrating vector, we find the expected cointegrating relationships between the port and inland prices. Using an error correction model, we show that a 10% increase in the wheat stocks reduces producer prices in Alberta and Manitoba by 6% and 4%, respectively. We conclude by discussing policy options for reducing the size of wheat stocks on the prairies.     

Slippage Effects of the Conservation Reserve Program

Each year, billions of dollars of public funds are expended to purchase conservation easements on farmland. One unintended impact of these programs is that they may bring non-cropland into crop production. Such a slippage effect can be caused by increased output prices and by substitution effects. This article shows that for each one hundred acres of cropland retired under the Conservation Reserve Program (CRP) in the central United States, twenty acres of non-cropland were converted to cropland, offsetting 9 and 14% of CRP water and wind erosion reduction benefits, respectively. Implications of these results for the design of conservation programs are discussed.