The Value of a Nutritionally Enhanced Staple Crop: Results from a Choice Experiment Conducted with Orange-fleshed Sweet Potatoes in Mozambique

Naico, A.; Lusk, Jayson L.

doi:10.1093/jae/ejq007

Cited by 62 publications

(49 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Earlier attempts to introduce orange-fleshed cultivars from Taiwan, Mainland China, and IITA failed because of their low dry matter content and squash-like flavour [27]. However, consumer acceptance has improved tremendously due to several research and promotions to address these weaknesses in countries such as Mozambique [28], Kenya [29], Ghana [30], and Tanzania [31]. Although consumers preferred orange-to white-fleshed cultivars, their low dry matter content was a limiting quality attribute [28].…”

Section: Progress In Varietymentioning

confidence: 99%

“…However, consumer acceptance has improved tremendously due to several research and promotions to address these weaknesses in countries such as Mozambique [28], Kenya [29], Ghana [30], and Tanzania [31]. Although consumers preferred orange-to white-fleshed cultivars, their low dry matter content was a limiting quality attribute [28]. In Ghana, cultivars with descriptors such as starchiness and stickiness, less dense texture requiring little chewing with strong flavour, and good mouth-feel were appealing to consumers [30].…”

Section: Progress In Varietymentioning

confidence: 99%

See 1 more Smart Citation

Sweet Potato Value Chain Analysis Reveals Opportunities for Increased Income and Food Security in Northern Ghana

Sugri

Maalekuu

Gaveh

et al. 2017

Advances in Agriculture

View full text Add to dashboard Cite

Sweet potato has gained prominence due to its ability to adapt to wide production ecologies and yield response to minimal external inputs. Orange-fleshed cultivars in particular have immense potential to improve household income and nutrition in sub-Saharan Africa. However, the sweet potato value chain (SPVC) is not well-developed in many producing countries. The study was conducted in two regions to characterize the production operations as well as identify opportunities to propel the SPVC in Northern Ghana. Data were collected using mixed methods including structured questionnaires via face-to-face interviews. Analysis of strengths, weaknesses, opportunities, and threats (SWOT) was conducted at multistakeholder platforms with different actors. Gross margin profit and benefit-cost ratios were determined by using six cost variables. Overall, the industry was largely a fresh produce market, targeting food vendors, processors, and direct selling to wholesalers, retailers, and household consumers. The SWOT analysis revealed wide-ranging opportunities including favourable production ecologies, processing options, and insatiable local and international markets. The institutional actors need to network the primary actors to synergistically operate with a collective profit motive. The most prioritized production constraints such as access to seed, cost of chemical fertilizer, short shelf-life, field pests and diseases, and declining soil fertility should be addressed.

show abstract

Section: Progress In Varietymentioning

confidence: 99%

Section: Progress In Varietymentioning

confidence: 99%

Sweet Potato Value Chain Analysis Reveals Opportunities for Increased Income and Food Security in Northern Ghana

Sugri

Maalekuu

Gaveh

et al. 2017

Advances in Agriculture

View full text Add to dashboard Cite

show abstract

“…These methods are cheap and convenient, but consumers only state their preferences, which can lead to hypothetical bias (Shogren, 2005). Choice experiments can be incentivized by showing the real product and offering an incentive that reflects the choice expressed in the experiment, for example as was done in a study on orange flesh sweet potatoes in Mozambique, although the authors concede this does not make the experiment incentive compatible (Naico & Lusk, 2010). Incentive compatibility can be achieved by making one of the choices binding and letting the participant purchase the outcome of the choice, as has been demonstrated with orange maize, biofortified with provitamin A, in Zambia (Chowdhury, Meenakshi, Tomlins, & Owori, 2011) and in Ghana (Banerji et al, 2013).…”

Section: Estimating Willingness To Pay With Experimental Auctionsmentioning

confidence: 99%

Combining experimental auctions with a modified home-use test to assess rural consumers’ acceptance of quality protein maize, a biofortified crop

Groote

Chege

Tomlins

et al. 2014

Food Quality and Preference

View full text Add to dashboard Cite

Biofortification, or breeding food crops for improved nutritional content, is a cost effective way to improve nutritional status. The process can, however, alter the sensory characteristics of the crop, and consumer acceptance is essential for their adoption. The oldest biofortified crop is quality protein maize (QPM), biofortified with essential amino acids, now found in many recently-released varieties in East Africa. To estimate rural consumers' acceptance and willingness to pay (WTP) for QPM in the dispersed population of Northern Tanzania, a novel method, combining a modified home-use test with a Becker-DeGroot-Marschak experiment, was developed. The results showed that rural consumers in Tanzania could distinguish stiff porridge made from QPM and from conventional maize (CM). They generally preferred the former, as expressed by higher scores during affective tests for texture, taste, and overall qualities. Further, rural consumers who were not provided with information about the nutritional benefits of QPM were willing to pay a premium of 16% over CM, and those who were given information, 39%.The scores on the affective test and the information on QPM's nutritional benefits were the main factors determining WTP in the experiment, while no personal characteristics of the participants were found to be significant. We conclude that QPM is, at least, as well accepted as conventional maize, and preferred for its sensory characteristics. Information on nutritional benefits increases rural consumers' willingness to pay for it, so information campaigns may be effective in increasing demand for QPM varieties. However, these varieties need to be competitive for other characteristics that rural households value, in particular, field and storage qualities.JEL classification: O13, D12, I12

show abstract

“…This approach has merit but is likely to require long-term research investment to fully pay off. Its exemplar crop, orange fleshed sweet potato, has been shown to be an excellent source of vitamin A and is in the process of widespread adoption in countries such as Mozambique and Uganda (Naico and Lusk 2010). However, as obesity is a growing problem associated with vitamin malnutrition, providing a carbohydrate-based source of vitamin A is perhaps not a perfect solution.…”

Section: How Lack Of Sufficient Vegetables Seriously Affects Human Hementioning

confidence: 99%

The importance of vegetables in ensuring both food and nutritional security in attainment of the Millennium Development Goals

et al. 2011

View full text Add to dashboard Cite

The Value of a Nutritionally Enhanced Staple Crop: Results from a Choice Experiment Conducted with Orange-fleshed Sweet Potatoes in Mozambique

Cited by 62 publications

References 7 publications

Sweet Potato Value Chain Analysis Reveals Opportunities for Increased Income and Food Security in Northern Ghana

Sweet Potato Value Chain Analysis Reveals Opportunities for Increased Income and Food Security in Northern Ghana

Combining experimental auctions with a modified home-use test to assess rural consumers’ acceptance of quality protein maize, a biofortified crop

The importance of vegetables in ensuring both food and nutritional security in attainment of the Millennium Development Goals

Contact Info

Product

Resources

About