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The study focused on the analysis of marketing White skinned Sweet Potato in selected markets of Kano State. Multistage sampling techniques was used for the study and data was collected using a structured questionnaire supplemented with key informant interview. A total of one hundred and seventeen 117 white sweet potato marketers were sampled. The analytical tool employed included simple descriptive statistics, net marketing margin, Gini Coefficient, marketing efficiency and multiple regression of the respondents in the study area. The result of the socio economic characteristics showed that 33% of the white sweet potato marketers were adult belonging to the age group of 30-39 years, 60% of marketers had household size of 1-10 members, 41% had 1-10 years of marketing experience, 91% were married with 91% males, the result of educational background study area shows that 46.8% had informal education. The result of the profitability analysis revealed that white sweet potato marketing was profitable with ₦574.52 and the total revenue realized for the marketing were ₦3,829.06. The result further revealed Gross Margin (GR) of 0.85 traded in the study area while return per naira invested was found to be 1.18 accrued from every 1.00 invested. The result also revealed that marketing of white sweet potato was efficient with 225.27%. The study further revealed variables such as: marketing experience, labour costs, transportation costs, loading and off-loading were found to be statistically significant. Results also indicate that the major determinant of net marketing income in the study area included labour 

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This study assessed economic efficiency of fish farming in Ondo State, Nigeria. The study used primary and secondary data to achieve the objective of the study. Primary data were collected with the aid of structured questionnaire from 72 Fish farmers selected using the multistage sampling technique. The analytical technique involved budgeting technique, stochastic frontier production and cost function analysis. The study discovered from the gross margin and net-revenue analysis that fish production was profitable judging by the positive value and size of the gross margin (₦175.55 per kg) and net revenue (₦170.96 per kg). The result of the stochastic frontier production function analysis showed that all the regressors used in the analysis had positive coefficient, indicating that allthe inputs considered had direct relationship with farmers output. The result of the stochastic cost frontier function analysis showed that unit cost of labour, fingerlings, fertilizer and lime had positive regression coefficients, indicating that as these variables increase,the overall production cost of fish increases. The result also indicated that the presence of technical inefficiency had effects on fish production as depicted by the significant estimated gamma coefficient. The study recommends improvement in human capital development through education policy and training programme by extension education, opening of more market opportunities should be pursued and government should provide support to fish farmer’s cooperative society by increasing their capital base.