Market integration between surplus and deficit rice markets during global food crisis period

Applying the maximum‐likelihood method of co‐integration, this study analysed spatial market integration between an adjacent rice surplus market (India) and deficit markets (Bangladesh and Nepal). The main focus is on the government policies of these three rice‐producing countries which have been imposed to reduce domestic price volatilities in rice markets during the recent ‘global food crisis’ in 2007–2008. The co‐integration tests find that domestic rice prices of India, Bangladesh and Nepal are integrated both in short‐run and long‐run periods despite the imposition of export restriction policies by India. The reason that prices are transmitted so effectively is most likely to be the widespread informal cross‐border trade through the porous borders among India, Bangladesh and Nepal.     

Market liberalization and integration of maize markets in Malawi

The paper studies the extent of market integration of maize markets in Malawi in order to understand how it has been affected by market liberalization. Several measures of integration are introduced to analyze both the comovement of prices and the price adjustment process over time. Monthly retail prices of maize at eight main locations over the period January 1984 to December 1991 are considered. The main conclusion is that liberalization has increased market integration.     

Market Performance of Potato Auctions in Bhutan

Abstract

Market performance with respect to a main horticultural export commodity in Bhutan is the subject of this paper. Imperfections in (market) infrastructure and market structure and conduct may prevent an optimal price for farmers. Market performance is assessed by testing the law of one price for this commodity. This is done by testing three series of auction price data on both long-run and short-run price integration. It is concluded that for the period 1996-2000 the auction prices were interrelated both in the long and short run with one of the three auctions as the price-leading market. In contrast, in the period 2001-2005 the market arbitrage process slowed down, indicating the rise of market imperfections. Policy implications are suggested.     

Processing Technology,Market Power and Price Transmission

This paper focuses on the extent to which price changes occurring at the farm-level are transmitted to the retail sector. A price transmission elasticity is derived which is shown to depend on the degree of market power in the food industry and the nature of the food industry's processing technology. The offsetting role of the processing technology and market power in determining the extent of price transmission are highlighted. A case-study reports values for the price transmission elasticity for the US beef and pork sectors.     

基于面板数据的中国城市土地市场发育与土地集约利用的动态关系研究

研究目的：通过分析城市土地市场发育与土地集约利用的长期均衡关系和短期波动效应,为转型期中国城市土地利用集约水平的提高提供一个新的研究视角和实现途径。研究方法：协整理论、Granger因果关系检验和脉冲响应函数。研究结果：中国城市土地的市场化程度与土地利用的集约度存在较稳定的长期均衡关系,而在短期内却是失衡的,且在东、中、西部地区表现各异。在东部,城市土地市场化程度对土地利用集约度的冲击效应为正,且随时间推移而递减,短期内降为0;在中部,城市土地市场化程度对土地集约利用的冲击效应为正且长期存在;在西部,城市土地市场化程度对土地集约利用的冲击效应短期内为负,而随时间推移变为正值且逐渐增大。研究结论：促进城市土地市场的发育和完善是促进转型期中国城市土地资源集约利用的主要手段,但在东、中、西部不同地区应根据土地市场发育程度的不同而有不同的政策着力点。     

Testing for spatial market integration: evidence for Colombia using a pairwise approach

We examine the extent of spatial market integration in Colombia using consumer price index data for 153 consumer goods in 13 cities. An econometric analysis of the time‐series properties of all the possible city price differentials reveals that market integration tends to occur more frequently in unprocessed food products, as opposed to processed foods, other traded and nontraded products. The results also support the view that, except for nontraded products, the speed at which prices adjust to the long‐run equilibrium is slower for cities that are farther apart.     

广东省土地市场运作模式与相关政策分析

本文回顾了广东土地市场的发展过程，就土地相关政策对土地市场的导向作用进行了分析，并针对土地市场运作中的一些问题提出了完善土地市场运作模式的建议。     

Market Integration of Fish in Europe

This paper examines market integration between fish species in Europe, taking international market integration into account. Based on Juselius (2006) , market integration is found both on the fresh and frozen markets. The Law of One Price is in force on the fresh market within the segments of flatfish and pelagic fish. Assuming transitivity, a loose form of market integration is identified between 13 fresh and seven frozen fish species, and the relative prices are found fairly stable. The policy implication is that catch limitation measures implemented through the Common Fisheries Policy have limited and conditional effects on prices, because of the large size of the market and varying market integration. Therefore, many fishermen are not ‘compensated’ by price increases as a result of catch limitation measures.     

Market Emergence and Transition: Arbitrage, Transaction Costs, and Autarky in China's Grain Markets

Using trimonthly Chinese provincial grain prices from 1988 to 1995, we estimate a parity-bounds model of interregional trade for four subperiods to characterize how multiple aspects of market performance change during the process of economic transition. For each period, we estimate the extent to which arbitrage opportunities are realized by traders, the transaction costs between location pairs, and the likelihood that regions do not trade. Trade restrictions cannot explain the pattern of uneven market development over time. Infrastructure bottlenecks, managerial incentive reforms, and production specialization policies, all were likely important factors affecting market performance.     

A Note on Tests for Market Integration in a Multivariate Non‐Stationary Framework

In this note relationships among agricultural prices are studied to offer a guide to the degree of market integration. Unlike many previous studies, which examine market integration using pairs of prices, we conduct testing in a multivariate framework to exploit the information embodied in the indirect price linkages. We focus on the formulation of hypotheses that identify the cointegration space using time series data on European pork and lamb markets. Results indicate that the national markets for pork are more closely integrated than those for lamb. Extraneous market information is exploited in an attempt to identify the cause of this segmentation in the European lamb market, although results do not support any of the hypotheses proposed.     

中国南方木材市场整合程度与价格传导机制研究

运用协整检验、格兰杰检验及市场综合联系指数方法对中国南方10省市2002~2014年12年间的木材市场整合程度与传导机制进行研究。结果表明:南方木材市场⑴具有长期整合趋势,但短期内由于某些因素的影响而阻碍了市场整合;⑵不存在严格的"价格变化中心";⑶价格影响机制以非对称传导为主。     

Vietnam's Agriculture: Processes of Rich Peasant Accumulation and Mechanisms of Social Differentiation

Vietnam's agrarian transition is reviewed and, against the World Bank view that land markets in Vietnam have been pro-poor, it is suggested that access to land has become stratified within specific provinces, districts and communes. Aggregate data and field research both demonstrate that the technical coefficients of production differ between farms when grouped according to a proxy for wealth, and that this is correlated with productivity per unit of land. It is therefore argued that there are emerging differences between farms that reflect divergence in the scale of production. At the same time, when grouped according to wealth there are differences between farms in terms of crop mix, the degree of market integration, and the extent of rural diversification. Holistic examination of the evidence suggests that Vietnam has an emergent group of rich peasants with relatively larger landholdings, amounts of capital stock, and use of hired labour-power; and higher yields per unit of land, a greater degree of market integration, and more marked productive diversification. This class can be set beside a numerically preponderant class of relatively small peasants, with smaller landholdings and amounts of capital, a heavier reliance on family labour, lower yields per unit of land, and less market integration and diversification. The evidence further demonstrates the rapid growth of a class of rural landless who are largely separated from the means of production, who survive by intermittently selling their labour, and who are the poorest segment of rural society.     

Market Failure and Japanese Farmland Rents

Since the early 1950s, Japanese farmland rents have been regulated and a consensus emerged that rent control led to market failure. Hypothesising a rent‐formation model where rents are determined by prices, this paper estimates a threshold autoregressive model which integrates three tests of market failure, namely, inefficiency, bias and asymmetry. There are four results. First, a long‐run relationship exists between rents and prices, and the Japanese farmland rental market is efficient. Second, the rent‐price elasticity is unity and the market is unbiased. Third, rents are Granger‐caused by prices which supports the rent‐formation model. Fourth, asymmetry exists where more rapid error‐correction occurs immediately after policy reform when rent growth exceeds price growth by 3.6% or more, and rent control has benefitted tenants.     

Government intervention and market integration in Indonesian rice markets

Long-run spatial price relationships in Indonesian rice markets and factors affecting the degree of market integration are evaluated using multivariate cointegration tests with weekly price data for the 1982-1993 period. The analysis includes evaluation of pre-self-sufficiency and post-self-sufficiency periods as well as Cot the entire period. The cointegration tests for entire Indonesian rice market, represented by the nine most relevant price series, indicate that relative to the pre-self-sufficiency period, the post-self-sufficiency period has a smaller degree of market integration. The change of the degree of market integration over time indicates that rationalizing of the Indonesian rice price policy beyond 1984 rice self-sufficiency has resulted in a less integrated market. This suggests that the policy shift has allowed the government to decrease its intervention without significantly decreasing market integration, indicating that the private sector is responding to price signals appropriately. It is possible that further reduction in intervention through widening the band between the floor and ceiling price could be accomplished without greatly affecting market integration. Regression results show that government intervention in terms of rice procurement significantly influenced market integration during the period of post-self-sufficiency (1985-1993) and the entire period of 1982-1993. This indicates that this aspect of government intervention has had positive influences on market integration, in contrast to distribution efforts, which were not found to be statistically significant, Procurement prices may be high, and could perhaps be lowered, reducing program costs. Regional per capita income is also found to be positively related to highei levels of market integration, suggesting that in periods of economic growth, government intervention may be decreased, thereby reducing program costs.     

Political Market Power Reflected in Milk Pricing Regulations

We investigate revealed political market power reflected in the pattern of price discrimination by end use that is the hallmark of U.S. milk marketing orders. We show that the pattern of prices that would maximize producer profits, if producers operated a cartel with monopoly power in a regional market, is far above actual government-set price differentials between milk used for fluid products and that used for manufactured products. The pattern of actual price differentials is consistent with political welfare weights for producers relative to consumers that are small compared to the weights that would yield maximum producer profits.     

Black Sea and World Wheat Market Price Integration Analysis

In 2008–10, Russia and Ukraine together exported an average of 29 million tons of wheat per year, and have become important players in the international wheat market. This research summarizes the short‐ and long‐run wheat price dynamics between Ukraine and Russia, and other major wheat exporters—the United States, European Union (EU), and Canada—from 2004 to 2010. Tests of market price co‐integration (Johansen maximum likelihood test and residual‐based tests) as well as threshold error correction techniques were performed for this purpose. The results suggest that Russian wheat prices were co‐integrated with EU and U.S. wheat prices but not with Canadian wheat prices. Ukrainian wheat prices were found to be co‐integrated with French wheat prices only. The estimated long‐run wheat price transmission elasticities were estimated to be equal to 1.04 between Russian and French (a representative country of the EU) wheat prices, 1.16 between Russian and U.S. wheat prices, and 1.05 between Ukrainian and French wheat prices. We also found the short‐term relationships between the co‐integrated series to be statistically significant. Price adjustments in all co‐integrated prices were found to be symmetric.     

Estimating the Degree of Market Integration

Existing tests of spatial market integration are commonly based on statistical criteria without an explicit link to an economic model of price determination. This article proposes new measures of market integration defined directly in terms of a well-known spatial price determination model and develops an econometric methodology for estimating these measures. Due to the intractability of the conditional density function of prices, we use indirect inference to estimate the model parameters and market integration measures. The methodology is illustrated with simulated data and is applied to soybean price data for the United States, Brazil, and the EU.     

运输成本、交易成本与空间市场整合来自中国猪肉市场的证据

[目的]考虑交易成本的影响,分析农业市场整合度,以期为促进区域协调发展,防范猪肉价格大起大落提供指导。[方法]文章基于全国生猪产业发展规划中重点发展区、约束发展区、潜力增长区和适度发展区的区域划分,采用价格日度高频数据,引入三机制阈值误差修正模型从交易成本的视角对猪肉市场整合进行实证研究,并通过样本识别测度运输成本对交易成本的实际解释力。[结果]就市场内部整合来看,潜力增长区的市场整合程度最高,约束发展区的市场整合最低;就跨区域整合来看,重点发展区—潜力发展区之间的市场整合度最高,重点发展区—约束发展区之间的市场整合度最低;进一步通过样本识别,测算出猪肉市场中运输成本对交易成本的真实解释度是33.5%左右,市场整合程度还有进一步提升的巨大空间。[结论]提出降低市场交易中的可控"流通"成本、提升市场整合度、促进猪肉价格长期稳定的建议。     

Multiple Inference and Market Integration: An Application to Swedish Fish Markets

This paper, in contrast to earlier studies, tests market integration using a methodology that accounts for the multiplicity problem inherent in testing several time series. This method minimises the risk of finding spurious evidence of market integration. We examine market integration among 12 fish species in Sweden by applying cointegration tests, which identify market integration for two separate clusters of species. Furthermore, we find that the Law of One Price holds for 6 of the 12 species considered.     

Institutional Market Power in Comté: Insights from a ‘Double Marginalisation’ Model

This article explores the economic efficiency of a horizontally and vertically coordinated industry where upstream producers are atomised, but downstream processors are few, explicitly considering participation incentives and allowing the coordinated industry to exert market power towards buyers. The model offers insight into the probable social impacts of the government‐sanctioned supply control scheme in place in the French Comté cheese market, suggesting it falls short of constituting a Pareto‐improvement compared with a laissez‐faire situation. More generally, our theoretical model provides guidance to identify instances where encouraging industry coordination may be socially desirable. We formally introduce the concept of ‘seller‐equivalent degree of overall market power’ of the separated industry, a market characteristic comprised of measurable or inferable parameters, the value of which is shown to determine the potential for Pareto improvements through industry integration.