Doctoral Thesis / Dissertation from the year 2017 in the subject Agrarian Studies, University of Ibadan (Department of Economics), course: Economics, language: English, abstract: The study was anchored on theories of production and supply response. A Nerlovian supply response model (1956) as modified by Karbasi and Tavana (2008) which captures the impact of trade and exchange rate reforms on agricultural commodities prices and outputs, and with acreage cultivated, labour and cost of agricultural machinery as control variables was explored. Major cash crops (cocoa, palm produce, palm kernel, groundnuts, rubber and cotton) and food (cassava, maize, yam and rice accounting for 28.0% of the 40.0% of staple food output) were purposively selected. Data were collected from the World Trade Organisation Trade Statistics, World Bank UN-COMTRADE statistics and World Development Indicators; Food and Agricultural Organisation Year Book Statistics and Agricultural Market Access Database; Central bank of Nigeria’s Statistical Bulletin and National Bureau of Statistics Annual Abstracts of Statistics. A Structural Vector Autoregression model was estimated via the generalized Impulse response functions and variance decomposition estimation techniques. All estimates were validated at p≤0.05. Trade policy shifted from a restrictive regime in 1970 to a liberalized regime starting from1995. Exchange rate policy similarly moved from a fixed regime in 1970 to a managed/float regime from 1986 to 2013. These reforms had diverse significant effects on both the prices and outputs of all sampled agricultural commodities. Trade effect was positive for palm kernel, cotton, rubber and cassava, while negative for the others. The effects were permanent across the ten commodities, while the elasticities for all the commodities range between 0.002 and 0.05. Exchange rate effect was positive for palm kernel, cotton, maize and rice, while negative for the others. The effects were also permanent except for rubber which was transitory, while elasticities for the commodities range between 0.1 and 2.3. On aggregate, the cost of machinery was found to be negatively related to the commodities outputs. A percentage increase in the cost of machinery brings about a 15.0 percent decline in output. Land and labour were positively and negatively related to output, respectively. An additional acre of land cultivation increased aggregate supply by 31.1%, while an increase in the use of labour decreased output by 19.0%. Trade and exchange rate reforms were critical in explaining the supply responses of sampled commodities, hence, the need for favourable and stable reforms.

Focuses on the effects of Nigeria's trade and exchange rate policies on agricultural incentives especially during the 1970s, the period of the oil boom. Attempts to determine the degree of protection granted to agriculture compared with other sectors, and assesses how these policies affected the allocation of resources both within agriculture and among the other sectors.

Research report, trade policy, exchange rate, agricultural policy, agricultural production, agriculture, Zaire since 1960 - economic policy, economic analysis, economic development, food import volume, food security, inflation, balance of payments, cash crop export volume, statistical analysis. Bibliography, graphs, statistical tables.

The links between trade-related policy reforms and food security is of key concern to many developing countries. This publication sets out the findings of 15 country case studies from Cameroon, Chile, China, Ghana, Guatemala, Guyana, India, Kenya, Malawi, Morocco, Nigeria, Peru, Senegal, Tanzania and Uganda. The coverage includes countries at different stages of development with the main focus on low-income countries that are likely to be at greater risk of food insecurity. The studies examine the impact of trade-related policy reforms on agricultural prices, production and trade, and the consequences for food security issues for each country.

Agricultural trade is a major factor determining food security in Caribbean countries. In these small open economies, exports are essential, whilst imports provide a large part of the food supply. This book examines various dimensions of trade policy and related issues and suggests policies to address trade and food security and rural development linkages. It is as a guide and reference documents for agricultural trade policy analysts, trade negotiators, policy-makers and planners in both the public and private sectors.