Publications
Ogundari, K., & Bolarinwa, O. D. (2018). Impact of Agricultural innovation adoption: a meta-analysis. Australian Journal of Agricultural and Resource Economics 62 (2), 217-236
Abstract
The impacts of adopting agricultural innovation and technology are widely examined. This paper synthesizes 154 studies, which yielded a total of 600 estimates of the impact of adopting agricultural innovation and technology on production, and on social, and economic outcomes. Using meta-regression analysis, the empirical results show that the reported impact of adopting agricultural innovation and technology rise significantly over time, notwithstanding a significant publication bias. Whether studies find significant impacts of adopting agricultural innovation and technology depends on the use of experimental research designs, parametric method, endogenous switching regression, and region. Our results show a large bias in the literature towards agricultural innovations and technologies that focus on high-yielding varieties and thus, neglect other forms of complementary innovations and technologies.
Ogundari, K., & Bolarinwa, O. D. (2019). Does adoption of agricultural innovations impact farm production and household welfare in sub-Saharan Africa? A meta-analysis. Agricultural and Resource Economics Review
Abstract
Although the adoption of agricultural innovations has been extensively examined in the literature, its impact on indicators of farm production and household welfare measures remains ambiguous in the context of sub-Saharan Africa (SSA). This study contributes to the impact of adoption of agricultural innovation literature by conducting a meta-regression analysis of 92 studies published between 2001 and 2015 in the SSA region. Overall, the empirical results from the meta-analysis suggest that the adoption of agricultural innovations have a positive and significant effect on indicators of farm production and household welfare measures. However, the magnitude of the impact is relatively small.
Bolarinwa, O. D., Ogundari, K., & Adebayo B. Aromolaran (2019). Intertemporal evaluation of household food security and its determinants: evidence from Rwanda. Food Security
Abstract
The food security literature has reiterated the importance of having an indicator that simultaneously captures the different dimensions of the food security definition. In this regard, this study builds on previous studies using a harmonized food security indicator within a relatively high frequency panel data from Rwanda to examine the dynamics of household food security. Summary statistics show the transitory nature of food security where households go either from complete state of food insecurity to being partially food insecure or from being partially food insecure to being completely food secure during the harvesting seasons and later fall back to their initial state during the sowing and growing seasons. This underscores the intertemporal dimension and transitory nature of food security over time. We also employed a correlated random effects multinomial logit model to further identify the determinants of households being in any of the identified states of food security. Results suggest that agricultural seasons of major food crops do determine households’ state of food security. Also, household socio-demographic characteristics, household assets, income diversification, and location of the household dwelling are some of the consistent factors that increase or decrease the likelihood of the household being food insecure.
Manuscripts under review
“Sectoral Idiosyncrasies affecting Homemaker’s Labor Participation and Household Expenditure on Food Away From Home: Evidence from Nigeria” (With Kolawole Ogundari and Adebayo B. Aromolaran)
Abstract
Studies have reiterated the importance of income, demographic characteristics, and homemaker’s time allocation on the consumption of Food Away from Home (FAFH) within the developing and developed countries context. Using a nationally representative data set of Nigeria, this study builds on previous studies by accounting for sectoral idiosyncrasies not captured within employee contracts but are likely to affect homemaker’s time allocation and thus, household’s consumption of FAFH. While our analysis was disaggregated by meal and facility types, the empirical results support the claim that sectoral differences do have differential impact on homemaker’s time allocation on household production and ultimately household’s consumption of FAFH. Across all specifications except dinner, households where homemakers work for profit oriented organizations such as being self-employed or work for the private sector are more likely to participate in the FAFH market and spend more on FAFH relative to households where homemakers are unemployed. On the contrary, households where homemakers work for religious organizations are less likely to participate in FAFH market and also spend less on FAFH. Other significant determinants of participation and consumption expenditure on FAFH include income, demographic characteristics, regional differences and whether or not the household resides in the rural area.
"Agricultural Commercialization and Food Security: An Ex-ante Approach” (With Charles B. Moss and James F. Oehmke)
Abstract
The lack of theoretical and pragmatic way of measuring agricultural commercialization has been responsible for the inconsistent results reported in the literature as regards the impact of agricultural commercialization on household welfare. Based on the theories of separability and transaction cost, this study makes use of an input-based market participation approach that utilizes household pre-planting production decision to stratify farming households according to production orientation. It hypothesizes that production orientation influences input and consumption decision and hence, should be taken into consideration when modelling agricultural household decision making process. Accordingly, the study estimates a system of input and consumer demand equations. It augments traditional input and consumer demand equations with an additional variable based on an endogenous switch, which measures the probability of being a commercial farming household. Empirical evidence, through the significance of the structural parameters in the endogenous switch for labor and working’s equations, suggest that market orientation is an important determinant of the level of traded input and hence, market participation. Also, we have some empirical evidence to support the role of market orientation as a significant determinant of market participation for this study. Predicted probabilities obtained from the endogenous switch are used to stratify households into subsistence and commercial agricultural households. Results of the relative effect of commercial agriculture on the level of household food security support the claim that production orientation does affect the relationship between the relative share of food expenditure to the household total expenditures and the logarithm of household expenditure for this part of sub-Saharan Africa.
Manuscripts under preparation:
“Effect of Income on Demand for Alcoholic and Non-Alcoholic drinks in Nigeria (With Kolawole Ogundari and Adebayo B. Aromolaran)
“Food Security and Resilience of Rwanda households: A poisson Analysis” (With Kolawole Ogundari and Adebayo B. Aromolaran)
“Effect of Asset Ownership by Rural Women in Ogun State on the Health of Preschool Children” (With Adebayo Aromolaran and Carolyn Afolami)
Other Publications
“Rwanda: Enabling Policy Area of Interest Brief”. Policy Brief: University of Florida Feed the Future Innovation Lab for Livestock Systems, in partnership with USAID (With Bhawna Thapa) May 2016. http://animal.ifas.ufl.edu/innovation/briefs/Rwanda_Brief_EnablePol_final.pdf