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1.
This article analyzes the impact of road rehabilitation on the spatial market efficiency of maize markets in Mozambique. We estimate a modified version of the Parity Bounds Model (PBM) that allows us to test the impact of road rehabilitation on spatial efficiency. This article seeks to contribute to the existing literature in three ways. First, a unique data set, where road rehabilitation episodes between market pairs are identified, is developed. Second, special care is devoted to estimation of transaction costs due to the sensitivity of the PBM model to the quality of transaction costs estimates. Finally, as opposed to most existing literature that focuses on relatively distant markets, the article focuses on spatially closed markets. We find that maize markets tend to be segmented due to high transport costs. Following road rehabilitation, inefficiency and average absolute price differentials tend to decrease, and market pairs have tended to shift toward autarky regimes. Overall, while the results point broadly toward a positive impact of road rehabilitation on spatial efficiency, they are not as strong or as robust as one would like. Large increases in fuel prices likely offset the positive impacts of road rehabilitation on transaction costs, contributing to the increase in the probability of being in an autarky regime. 相似文献
2.
Maize (Zea mays) shortages and maize price instability continue to occur in Mozambique in spite of policy reforms and great capacity for increased production in northern Mozambique. This study measured the efficiency of spatial maize price arbitrage in Mozambique's post‐reform period. Spatial price inefficiency does not seem to explain why food shortages continue to occur in Mozambique, suggesting nonprice market constraints such as poor infrastructure and poor market institutions as more likely explanations. Baulch's spatial efficiency test indicated that it is not profitable to ship maize from northern surplus maize regions to southern Mozambique. Records of interregional maize shipments show that indeed grain is not being shipped from the north to the south. Market liberalization may have improved spatial price efficiency, but high transfer costs still limit trade and potential benefits from freeing markets. Under these circumstances, food shortages and price instability are likely to continue. 相似文献
3.
Margherita Scoppola 《Agricultural Economics》2007,37(2-3):277-291
A large body of literature has examined international grain trade in imperfectly competitive models. The article develops a two-stage duopoly model that considers a private trader and a State Trading Enterprise (STE) competing on a foreign market. The key difference between the private trader and the STE is their international organization; while the STE makes use of external agents to export, the private firm may choose to internalize international transactions. The game is solved for different modes of competition and under both assumptions of homogeneous and differentiated products, in order to assess how these assumptions affect the outcome of the game. The results of the game are examined by using numerical examples. The analysis shows that external shocks on export markets may result in a change of market structure and, consequently, of market shares. These effects depend on the initial market structure. Furthermore, the degree of product differentiation and the assumed mode of competition significantly affect the relative values of transaction and fixed costs at which the market structure changes. 相似文献
4.
The paper investigates geo‐physical, agro‐ecological, and socio‐economic determinants of past land use change in two districts of Dak Lak province in the Central Highlands of Vietnam and assesses the influence of rural development policies on land cover change. Landsat satellite images from the years 1975, 1992 and 2000 are interpreted to detect land cover in two time periods. A survey in randomly selected villages provides primary recall data on socio‐economic and policy variables hypothesised to influence land use change. Secondary data on rainfall, soil suitability, and topography was obtained from meteorological stations and from a digital soil map and digital elevation model. All data were spatially referenced using geographic information systems (GIS) software. A reduced‐form, multinomial logit model is used to estimate the influence of hypothesised determinants on land use and the probabilities that a certain pixel has one of five land classes during either of the two periods. Results suggest that the first period from 1975 to 1992 was characterised by land‐intensive agricultural expansion and the conversion of forest into grass and agricultural land. During the second period, since 1992, the rapid, more labour‐ and capital‐intensive growth in the agricultural sector was enabled by the introduction of fertiliser, improved access to rural roads and markets, and expansion of the irrigated area. These policies, combined with the introduction of protected forest areas and policies discouraging shifting cultivation during the second period reduced the pressure on forests while at the same time increasing agricultural productivity and incomes for a growing population. Forest cover during the second period mainly increased due to the regeneration of areas formerly used for shifting cultivation. 相似文献
5.
Gaminda Ganewatta Robert Waschik Sisira Jayasuriya Geoff Edwards 《Agricultural Economics》2005,33(3):341-350
Governments in many developing countries, influenced by the experience of the East Asian newly industrialized countries, have adopted policies to enhance domestic processing of primary commodities as a tool for accelerating employment growth, export revenues, and development. Sri Lanka has traditionally exported tea in the form of bulk (commodity) teas, but “value‐added” teas such as packaged teas, tea bags, etc., have expanded in recent years. This article examines factors affecting the processing of value‐added tea products in Sri Lanka by modeling export supply behavior. Estimates of the long‐run relationship and short‐run dynamics of export supply are presented and discussed. The price of value‐added tea relative to bulk tea, and industry capacity, are identified as the main determinants of export supply, while exchange rate changes have no discernible effect. The policy implications of the analysis for enhancing further expansion of such value‐added teas are presented. These are of interest for both policy makers and development analysts. In particular, the reasons that undermine the effectiveness of exchange rate policy as an instrument to stimulate value addition of primary products have much relevance for similar developing countries. 相似文献
6.
This paper presents an econometric analysis of land‐cover change in western Honduras. Ground‐truthed satellite image analysis indicates that between 1987 and 1996, net forest regrowth occurred in the 1015 km2 study region. While some forest regrowth can be attributed to a 1987 ban on logging, the area of forest regrowth greatly exceeds that of previously clear‐cut areas. Further, new area was also deforested between 1987 and 1996. Thus, the observed land‐cover changes most likely represent a complex mosaic of changing land‐use patterns across time and space. Using satellite imagery from 1987, 1991 and 1996, we estimate a series of models, including binary probit models for each date, and a random‐effects probit model using panel techniques. We also experiment with spatial sampling schemes designed to reduce residual spatial autocorrelation, and qualitatively compare the impact of spatial sampling on model accuracy. Lastly, we find that changes in relative prices, infrastructure improvement, and topography are all significantly related to changing land‐cover patterns. 相似文献
7.
Fu-Sung Chiang 《Agricultural Economics》2005,33(1):67-77
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
8.
George Philippidis Helena Resano‐Ezcaray Ana I. Sanjuán‐López 《Agricultural Economics》2013,44(2):141-159
With significant improvements in its theoretical underpinnings, the gravity model has gained renewed interest in the agro‐food trade literature. Notwithstanding, there is a dearth of literature examining the relative trade restrictiveness of tariff barriers across a broad range of agro‐food sectors. This represents an important research gap, which this study sets out to fill. Furthermore, this research reconciles the application of zero‐inflated models with a sectorally disaggregated analysis. More specifically, employing a fully specified gravity equation, a Poisson estimator and variants of the Poisson model (Negative Binomial, Zero‐Inflated Poisson, and Zero‐Inflated Negative Binomial) provide statistically significant and theoretically consistent estimates, while allowing for the inclusion of zero‐trade values. A panel data model with fixed effects is also employed to improve the estimation of the parameters of interest. Estimation results reveal that in the vast majority of sectors examined, import tariffs are found to be statistically significant, whereas export refunds exhibit a statistically smaller role due to the nonsystematic nature of their application in world food markets. Model simulations of tariff barrier eliminations reveal limited trade gains, although there is encouraging evidence of “low” and “lower middle” per capita income country trade gains in wheat, red meat, dairy, sugar, and (particularly) rice markets. 相似文献
9.
MCarmen Martínez‐Victoria Mariluz Mat‐Snchez‐Val Alfons Oude Lansink 《Agricultural Economics》2019,50(3):315-327
This study analyzes the spatial dynamics in productivity growth and its components for a sample of agri‐food companies in Murcia (Spain) over the period 2005–2014. We find that productivity growth of a company is related to productivity growth of neighboring companies, in both the short and long term. The marginal effects of the different factors on productivity growth are stronger in the short run rather than in the long run. Land characteristics and economic territorial conditions have the largest marginal effect on productivity growth and its components. This study contributes to the existing literature by including spatial interactions in the analysis of productivity growth. 相似文献
10.
Thomas L. Vollrath Mark J. Gehlhar Charles B. Hallahan 《Journal of Agricultural Economics》2009,60(2):298-317
Many factors shape the global network of bilateral trade including fundamental forces of supply and demand factors and government policies. This study uses the generalised gravity framework to distinguish among the different drivers that either deter or aid partner trade in land‐intensive agriculture and labour‐intensive clothing. The dataset used in the analysis includes bilateral trade among 70 countries in 1995, 2000 and 2005. Collectively, the 70 countries account for 85% of the world’s trade in agriculture and 96% of its GDP. Empirical results lend support to the Heckscher–Ohlin explanation of trade, namely that relative factor endowments motivate cross‐border trade. Results also show that tariffs are not always binding and bilateral free‐trade agreements more often divert rather than create trade. 相似文献
11.
This paper explores the question of convergence in total factor productivity (TFP) in agriculture across fourteen major agricultural states of India. Using a Törnqvist–Theil index for TFP growth for the period 1973–1993, we find no evidence to support convergence to a single TFP level (σ‐convergence). After grouping the various states on the basis of their productivity performance, we find that the high‐performing states show a gradual movement towards the trend, whereas the low‐performing states generally show more volatility. Testing for long‐run convergence in levels of agricultural productivity, we find evidence of conditional beta‐convergence after controlling for state‐specific factors and idiosyncratic year‐specific volatility. The results are robust to alternative specifications of tests of unit root in panel data developed recently. 相似文献
12.
Using data from the Canadian Survey of Labour and Income Dynamics (SLID) for the period 1993–1996, we examine patterns and determinants of labour‐force transitions of adequately employed and underemployed workers in an attempt to explore whether employment dynamics significantly differ between rural and urban workers so as to disadvantage rural economic performance. The results indicate that rural adequately employed workers are significantly more likely to enter underemployment but once they are underemployed, they also have a higher probability of re‐entering adequate employment. Further, we also found weak evidence that the education level of workers has a lower impact on the probability of moving out of underemployment in rural than in urban areas. In addition, rural women are significantly less likely than their male counterparts and urban workers to enter adequate employment, although the presence of young children does not seem to especially constrain the employment of rural women. The results suggest that labour‐force transition in and out of adequate employment, and particularly underemployment, significantly differ between rural and urban workers and should be taken into account when evaluating employment hardship in rural Canada. 相似文献
13.
A sample of Iowa farm couples is used to evaluate whether off‐farm labor supply decisions respond to permanent and transitory components of farm income. Off‐farm labor supply of both spouses declines in response to increases in permanent farm income. Farm wives also reduce off‐farm labor supply in response to positive transitory farm income shocks. Consequently, one mechanism farm households use to smooth their goods consumption when facing fluctuating farm income is to modify their consumption of leisure. Ability to smooth goods consumption does not imply the absence of liquidity constraints among farm households unless leisure consumption is also smoothed. 相似文献
14.
15.
This study uses a random parameter probit estimation to examine the effects of tariff liberalization on the probability of establishing new trading relationships in meat commodities. Our simulation results indicate that the effects of tariff reductions decrease with distance, but increase with the level of development. The probabilities of trade increase at an increasing rate with the size of tariff reductions thus justifying calls for ambitious liberalization schemes. Canada and Mexico are the NAFTA countries that are most likely to export in response to EU tariff reductions on bovine and poultry meats, while Brazil and Argentina emerge as the MERCOSUR countries most likely to penetrate the EU bovine meat market after EU tariff reductions. Uruguay's probability to export poultry meat is most responsive to EU tariff reductions. 相似文献
16.
In 2016, the U.S. launched a trade dispute against China at the World Trade Organization, arguing that China has been restricting its grain imports via tariff quota administration. Despite sharp criticisms by the U.S., the extent to which the grain imports were restricted in China remains largely unknown, primarily due to that China's grain import behaviors are still under-researched. The U.S. grain export sector might actually gain little from China's grain trade liberalization in the short run, since China has become less import dependent on the U.S. through the pursuit of import diversification. In this context, this article aims to quantify impacts of the tariff quota administration on China's grain imports from its trading partners. We calculate ad valorem tariff equivalents of the tariff quota administration and then estimate import demand elasticities using a source differentiated import demand model. We find that the tariff quota administration might have reduced China's quota fill rates for the grain commodities by 10–35% during 2013–2017. In particular, the U.S. wheat exports to China were largely negatively affected. We also find that the tariff quota administration in China acts like a variable import levy—its import restrictiveness varies negatively with world prices, leading to lower import demand elasticities. 相似文献
17.
This article offers a comprehensive analysis of the problem of choosing between alternative market risk management instruments. We model farmers' behavior to optimize the certainty equivalent, formulated by a mean–variance model, by combining instruments with and without basis risk. Results are expressed as the demands for hedging with futures, forward contracts and insurance. Theoretical results are applied to a selection of Spanish producers of fresh potatoes, a sector that is exposed to significant market risks. Amsterdam's Euronext provides potato futures prices, and the recently launched revenue insurance in Spain provides the example for price insurance. Three conclusions summarize the article's main findings. First, we show that Spanish potato revenue insurance subsidies are a factor that determines the instrument rankings and choice. Second, the efficiency of insurance subsidies is generally low. Finally, the Amsterdam potato futures market does not provide a cost‐effective means to manage price risks for Spanish fresh potato growers. 相似文献
18.
This article analyses the relationship between foreign direct investment and the performance of European agribusiness firms. Motivated by the role of heterogeneous firms in new trade theory and using a firm‐level dataset, statistical analyses identify key differences between firms investing in foreign economies and those that do not. A binary choice model quantifies the relationship between firm characteristics and the decision to engage in foreign investment. Size and – less strongly – productivity are greater for multinationals relative to domestic firms. Furthermore, European multinationals are characterised by a larger debt to equity ratio and show lower labour and input costs. 相似文献
19.
J. G. M. Hoogeveen 《Oxford Development Studies》2013,41(1):105-121
Households in developing countries have to deal with large fluctuations in income without being able to rely on formal insurance and credit markets. This paper presents an overview of the ways in which poor households attain consumption security and shows that doing so in the absence of security enhancing institutions is costly, especially for the poor. 相似文献
20.
Participation in government programs has a mild impact on the economic well‐being of U.S. farm households. Major factors that determine farm household prosperity are the primary operator's education level and ethnicity, education level of the spouse, and other characteristics such as forward purchasing of inputs, use of contract shipping of products, having a succession plan, farm ownership, and location in a metro area. This article uses the 2001 Agricultural Resource Management Survey (ARMS) as well as relative and an absolute measure to assess U.S. farm households' economic well‐being. The relative measure compares the income and wealth position of farm households relative to median income and median wealth of the general population. The absolute measure adds annualized wealth to a farm household's income. 相似文献