A latent class approach to investigating demand for genetically modified banana in Uganda

被引:44
作者
Kikulwe, Enoch M. [1 ]
Birol, Ekin [2 ]
Wesseler, Justus [3 ]
Falck-Zepeda, Jose [4 ]
机构
[1] Univ Gottingen, Dept Agr Econ & Rural Dev, D-37073 Gottingen, Germany
[2] IFPRI, Markets Trade & Inst Div, Washington, DC 20006 USA
[3] Wageningen Univ, Environm Econ & Nat Resources Grp, NL-6700 EW Wageningen, Netherlands
[4] IFPRI, Environm & Prod Technol Div, Sydney, NSW 2006, Australia
关键词
Genetically modified bananas; Consumers; Choice experiment; Latent class model; Preference heterogeneity; Uganda; HETEROGENEOUS PREFERENCES; GM FOOD; CHOICE; MODELS; ATTRIBUTES; RESOURCES; CATTLE; LOGIT; CROP;
D O I
10.1111/j.1574-0862.2010.00529.x
中图分类号
F3 [农业经济];
学科分类号
0202 ; 020205 ; 1203 ;
摘要
This study explores consumer acceptance and valuation of a genetically modified (GM) staple food crop in a developing country prior to its commercialization. We focus on the hypothetical introduction of a disease-resistant GM banana variety in Uganda, where bananas are among the most important staple crops. A choice experiment is used to investigate consumer preferences for various attributes related to the banana (such as bunch size, technology, producer benefit, and price) and examine their opinions on GM foodstuff. Choice data come from 421 banana-consuming households randomly selected from three regions of Uganda. A latent class model is used to investigate the heterogeneity in consumers' preferences for selected attributes related to the banana and to profile consumers who are more or less likely to accept GM bananas. Our results reveal that there is significant heterogeneity in consumer preferences across our sample. GM bananas are valued the most by poorer households located in the rural areas of the Eastern region. These food-insecure households would experience the highest benefits (i.e., welfare gains) from the commercial release of GM bananas. In contrast, urban consumers are less accepting of GM bananas, and they would experience significant welfare losses if GM banana is released. According to our welfare estimates, both the total welfare benefits acquired by the gainers and the total welfare losses borne by the losers of this technology are significant and large. These results suggest the need for further investigation of the overall welfare effects of the introduction of GM bananas on the Ugandan society as a whole.
引用
收藏
页码:547 / 560
页数:14
相关论文
共 57 条
[21]  
Gaskell G., 2006, EUROPEANS BIOTECHNOL
[22]   A latent class model for discrete choice analysis: contrasts with mixed logit [J].
Greene, WH ;
Hensher, DA .
TRANSPORTATION RESEARCH PART B-METHODOLOGICAL, 2003, 37 (08) :681-698
[23]   Modelling recreation demand using choice experiments: Climbing in Scotland [J].
Hanley, N ;
Wright, RE ;
Koop, G .
ENVIRONMENTAL & RESOURCE ECONOMICS, 2002, 22 (03) :449-466
[24]  
Hensher D., 2005, APPL CHOICE ANAL PRI
[25]   Trading off health, environmental and genetic modification attributes in food [J].
Hu, WY ;
Hünnemeyer, A ;
Veeman, M ;
Adamowicz, W ;
Srivastava, L .
EUROPEAN REVIEW OF AGRICULTURAL ECONOMICS, 2004, 31 (03) :389-408
[26]  
JOHNSON F.R., 2007, Valuing Environmental Amenities Using Stated Choice Studies: A Common Sense Approach to Theory and Practice
[27]  
KIKULWE ME, 2007, EC ASSESSMENT BANANA, pCH4
[28]  
Kontoleon A., 2006, J AGR FOOD IND ORG, V4, P1150, DOI DOI 10.2202/1542-0485.1150
[29]   Consumer attitudes toward GM food and pesticide residues in India [J].
Krishna, Vijesh V. ;
Qaim, Matin .
REVIEW OF AGRICULTURAL ECONOMICS, 2008, 30 (02) :233-251
[30]  
KUHFELD WF, 2004, TS694 SAS