This paper evaluates the economic impact of climate change on Nigeria's maize sector using a Ricardian approach. Data was collected on temperature, precipitation, soil, maize revenue, socioeconomic characteristics and adaptation strategies to varying climate factors. The study reveals that net maize revenue per hectare is sensitive to climate change. The impact of predicted climate scenarios from three models (CGM2, HADCM3 and PCM) indicated that there would be an increasing reduction in maize net revenue per hectare over the forecast period unless appropriate mitigation responses are adopted. Further, impact of climate change is not uniformly distributed across the different agroecological zones.

This study analyzed maize value addition among maize entrepreneurs in Taraba State, Nigeria. A multi-stage sampling procedure was used to collect primary data from two hundred and twelve respondents (212), using structured questionnaire. Data were analyzed using descriptive statistics, Value addition model, ANOVA, multinomial logistic regression, log likelihood test ratio and factor analysis. The result of the study revealed that most (62.3%) respondents were males. 61.3% were within the productive age of 21-40 years. Majority (71.1%) were married with household sizes of 6-10. The total of (32.8%) respondents of them had secondary school education, (46.6%) had processing experience of between 6-10 years in processing as their major occupation. proportionate (49.2%) of total respondents had non-farm income of N150,001 per annum. Results of the value addition analysis showed that maize processed as boiled maize is more profitable with a mean of N130, 900 per annum. The result from the multinomial logistic regression on choice of maize processing enterprises revealed that sex had negative coefficient, which implied that male respondents preferred grain production enterprise rather than processing into akamu, corn flour, massa and boiled maize. Also age had negative coefficient, implying that age increase tends to favour grain production than processing. In relation to processing constraints, the maize processing value chain was hampered by the following: inadequate processing facilities, inadequate credit/funds, high cost of transport and inadequate access to inputs. The study concluded that maize value addition is a profitable enterprise and entrepreneurs should be encouraged to venture into it. Also the Agricultural Development Project Programme should send extension agents to processors to encourage processing diversification especially into poultry feeds.

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The purpose of this chapter is to analyse spatial price efficiency of food products in rural and urban markets in Benue State, Nigeria. A weekly market survey was carried out for 40 weeks in rural and urban markets in Benue State in order to generate data for the study. The study indicated that price association existed between the base (urban) market and the supplying (rural) markets. There was great variability in the prices of food commodities between the base market and the supplying markets. The result of the study also showed that there was a marked price differential between the base market and the supplying markets. Furthermore, interactions between the base market and the supplying markets were characterized by marked imperfections and inefficiency in the marketing system. Price information, including its quality and availability should be enhanced. Storage facilities and other social amenities should be provided for farmers in the rural areas where agricultural activities are predominant.