James Oehmke

Dr. James Oehmke


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 July 2019 in BMC Public Health
Verified
Journal Article
Open access
PDF file
DWDave Weatherspoon
Dave Weatherspoon
SMSteven Miller
Steven Miller
JNJean Chrysostome Ngabitsinze
Jean Chrysostome Ngabitsinze
LWLorraine Weatherspoon
Lorraine Weatherspoon
JOJames Oehmke
James Oehmke
Over the past two decades, Rwanda has experienced impressive economic growth, resulting in considerable improvements in living standards and poverty reduction. Despite these gains, progress on reducing the level of stunting in smallholder rural children, particularly boys, continues to be a serious concern. Policies, dietary diversity and socio-economic factors that may influence stunting in rural Rwandan children were evaluated using a logit model with clustered variance-covariance estimators based on village membership of the household. Stunting of rural children was found to be multidimensionally related to the child’s gender, weight and age; the dietary diversity, marriage status and education level of the head of household; mother’s height; presence of a family garden or if they owned livestock; environmental factors such as altitude and soil fertility and location relative to a main road en route to a market; and a policy that promoted food production. Findings suggest that agricultural policies may be subsidizing poor dietary behavior in that the aggregation of production encourages households to sell high quality nutritious food such as fruit and vegetables, for more voluminous amounts of nutritionally substandard goods, hence low dietary diversity. However, it is less clear if rural food markets are capable of supplying diverse and nutritious foods at affordable prices on a consistent basis, resulting in a lack of diversity and hence, low nutrient quality diets. Rwanda’s next round of food security policies should focus on nutrition insecurity with special emphasis on the lack of protein, micronutrients and calories. Multipronged policies and programs focused on income growth, food security, enhanced access to markets and gender-related nutrition risks from inception through 2 years of age in the rural areas are required to improve rural household health outcomes, stunting in particular.

4 July 2016 in Food Security
Verified
Journal Article
Closed access
PDF file
PRPete Richards
Pete Richards
TRTom Reardon
Tom Reardon
DTDavid Tschirley
David Tschirley
TJThomas Jayne
Thomas Jayne
JOJames Oehmke
James Oehmke
DADavid Atwood
David Atwood

5 June 2017 in British Food Journal
Verified
Journal Article
Closed access
DWDave Weatherspoon
Dave Weatherspoon
MSMarie Steele-Adjognon
Marie Steele-Adjognon
FNFidèle Niyitanga
Fidèle Niyitanga
JDJean Paul Dushimumuremyi
Jean Paul Dushimumuremyi
ANAnwar Naseem
Anwar Naseem
JOJames Oehmke
James Oehmke
Purpose: An extended period of economic growth along with stubborn childhood stunting and wasting levels raises questions about how consumer food purchasing behaviors respond to income increases in Rwanda. The purpose of this paper is to assess the role income, prices, policy, agricultural production, and market access play on how rural households purchase different food groups.Design/methodology/approach: Six separate log-normal double hurdle models are run on six different food groups to examine what affects the probability a household purchases in each food group and for those who do purchase, what determines the quantity purchased.Findings: Rural Rwandans are price and expenditure responsive but prices have more impact on food group purchases. Crop production resulted in reduced household market procurement for its associated food group but had mixed effects on the purchases of all other food groups. Rural Rwandans purchase and consume low amounts of animal-based proteins which may be a leading factor related to the high stunting and wasting rates. Owning an animal increased the purchased quantity of meat but lowered the purchased quantity of most other food groups.Practical implications: Results suggest that policies and programs have to address multiple constraints simultaneously to increase the purchases of the limited food groups in the rural household diets that may be contributing to the high rates of stunting and wasting.Originality/value: This study is the first to evaluate the interplay among prices, household income, household production, policies and donor programs, and demographic variables on rural Rwandan household food purchases.

10 December 2016 in American Journal of Agricultural Economics
Verified
Journal Article
Open access
PDF file
JOJames Oehmke
James Oehmke
Hurley, Rao, and Pardey (2014) argue to replace the internal rate of return with the modified internal rate of return for the evaluation of public research investment. The crux of their argument is that the internal rate of return “assumes intermediate cash flows can be reinvested (or borrowed) at same return as the initial investment, which is generally not correct or reasonable,” (page 1492). This article first demonstrates that reinvestment decisions are embodied in the project specification, and that the internal rate of return makes no inherent reinvestment assumption. The article then clarifies the algebraic properties of the marginal internal rate of return and the reinvestment implications of the internal rate of return and modified internal rate of return within the context of public agricultural research evaluation.

8 April 2016 in Econometrics
Verified
Journal Article
Open access
PDF file
CMCharles Moss
Charles Moss
JOJames Oehmke
James Oehmke
ALAlexandre Lyambabaje
Alexandre Lyambabaje
ASAndrew Schmitz
Andrew Schmitz
This study examines, using quantile regression, the linkage between food security and efforts to enhance smallholder coffee producer incomes in Rwanda. Even though in Rwanda smallholder coffee producer incomes have increased, inhabitants these areas still experience stunting and wasting. This study examines whether the distribution of the income elasticity for food is the same for coffee and noncoffee growing provinces. We find that that the share of expenditures on food is statistically different in coffee growing and noncoffee growing provinces. Thus, the increase in expenditure on food is smaller for coffee growing provinces than noncoffee growing provinces.

23 July 2018 in Economies
Verified
Journal Article
Open access
PDF file
CMCharles Moss
Charles Moss
SMSamba Mbaye
Samba Mbaye
ANAnwar Naseem
Anwar Naseem
JOJames Oehmke
James Oehmke
One of the basic debates in African development is whether agriculture can be the instrument for the transformation of a rural economy. A common question is whether agricultural policies can provide the impetus to move agriculture in developing economies from subsistence to commercial agriculture. Senegal’s Plan Sénégal Emergent (PSE) provides a data point in this discussion. Senegal and international donors invested in agricultural supply chains starting in 2012 to facilitate the emergence of commercial agriculture for peanuts, rice, and vegetables. This study focuses on these investments in the Senegal River Valley of northern Senegal. The empirical results presented in this study provide evidence that farms in the Senegal River Valley impacted by PSE have moved away from subsistence agriculture by planting more hectares in commercial crops.