世界経済・社会統計 = World development indicators

计量经济分析 = Econometric analysis

Statistical Databases

https://www.wikigender.org/wp-content/uploads/files/IFPRIDP00882.pdf

Promising Approaches to Address the Needs of Poor Female Farmers: Resources, Constraints, and Interventions

https://reliefweb.int/sites/reliefweb.int/files/resources/BC4F6F3129C7772B8525775100588D7F-Full_Report.pdf

Impact of Farmer Field Schools on Agricultural Productivity and Poverty in East Africa

An import allocation model is used to examine the effects of price risk (variance of prices) on exporter competition in China's soybean market. Price risk is an important determinant of China's soybean imports across sources (Argentina, Brazil, and the United States), even when accounting for other factors. Results indicate that Argentina is the only country affected by own-price risk in the Chinese market; imports decline by 1.11% for every percentage increase price risk. The estimated risk premium for soybeans from Argentina is 0.44, indicating that if price risk increases by 1%, prices would have to fall by 0.44% for imports to remain unchanged. Price risk in Argentina has a positive effect on China's imports from the United States. Price risk in Brazil has a positive effect on imports from Argentina, but a negative effect on imports from the United States. [EconLit citations: D81, F14, Q11, Q17].

Price Risk and Exporter Competition in China's Soybean Market

Summary In view of increasing lamb and mutton imports and declining domestic supplies, the goal of this paper was to derive empirical estimates of conditional and unconditional elasticities of derived demand for imported lamb and mutton differentiated by source country of production (Australia and New Zealand) and type (frozen and chilled) with respect to frozen and chilled prices in Australia and New Zealand, U.S. wholesale lamb price, U.S. wages in the wholesale trade sector, and the total amount of frozen and chilled lamb imported. The impact of the removal of the TRQ on U.S. lamb imports was assessed as well. We used the differential approach to the theory of the firm where firms maximize profits in two stages. In the first stage, firms determine the profit maximizing level of output to produce and in the second stage firms minimize the cost of producing this profit maximizing level. We assume that firms import lamb from all possible sources and sell the output to other firms, be it wholesalers or retailers. The results show that as the U.S. wholesale price of output supply increases, imported lamb increases. Also, the results suggest that the TRQ had a significant and adverse impact on total imports and therefore could have been more effective for U.S. if exchange rates for Australia and

U.s. demand for imported lamb by country: a two-stage differential production approach

The end of the trade war? Effects of tariff exclusions on U.S. forest products in China

Export tax reform in Argentina could improve its competitiveness in China’s soybean market, displacing exports from competing countries like Brazil and the United States. We examined the factors that determine China’s demand for imported soybean products and how export taxes could affect exporting countries. Using import demand and vector autoregression estimates, we conducted simulations of China’s import demand assuming the elimination of export taxes in Argentina. Results indicated that Argentine soybean products could realize gains in the Chinese market, but only in the short run. Projected import demand changes in the long run were insignificant for all exporting countries.

/pdf/export-tax-reform-and-the-competitiveness-of-imported-1msdtithqs.pdf

Export Tax Reform and the Competitiveness of Imported Soybeans in China

Several recent papers have used annual changes and monthly data to estimate demand systems. Such use of overlapping data introduces a moving average error term. This paper shows how to obtain consistent and asymptotically efficient estimates of a demand system using seasonally differenced data. Monte Carlo simulations and an empirical application to the estimation of the U.S. meat demand are used to compare the proposed estimator with alternative estimators. Once the correct estimator is used, there is no advantage to using overlapping data in estimating a demand system.

/pdf/estimating-a-demand-system-with-seasonally-differenced-data-41yom0kyfr.pdf

Andrew Muhammad

Papers

Price Risk and Exporter Competition in China's Soybean Market

U.s. demand for imported lamb by country: a two-stage differential production approach

The end of the trade war? Effects of tariff exclusions on U.S. forest products in China

Export Tax Reform and the Competitiveness of Imported Soybeans in China

Estimating a Demand System with Seasonally Differenced Data