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Multinomial Logit Analysis (multinomial + logit_analysis)

Distribution by Scientific Domains

Humanities and Social Sciences	33%
Business, Economics, Finance and Accounting	33%

Selected Abstracts

Implications of Racial and Gender Differences In Patterns of Adolescent Risk Behavior for HIV And Other Sexually Transmitted Diseases

PERSPECTIVES ON SEXUAL AND REPRODUCTIVE HEALTH, Issue 6 2004
Carolyn Tucker Halpern
CONTEXT: Sexual and substance use behaviors covary in adolescence. Prevalence of HIV and other sexually transmitted diseases (STDs) differs according to race and gender, yet few studies have systematically investigated risk behavior patterns by subgroup, particularly with nationally representative data. METHODS: A priori considerations and K-means cluster analysis were used to group 13,998 non-Hispanic black and white participants in the National Longitudinal Study of Adolescent Health, Wave 1, according to self-reported substance use and sexual behavior. Multinomial logit analyses examined racial and gender differences by cluster. RESULTS: Among 16 clusters, the two defined by the lowest risk behaviors (sexual abstinence and little or no substance use) comprised 47% of adolescents; fewer than 1% in these groups reported ever having received an STD diagnosis. The next largest cluster,characterized by sexual activity (on average, with one lifetime partner) and infrequent substance use,contained 15% of participants but nearly one-third of adolescent with STDs. Blacks were more likely than whites to be in this group. Black males also were more likely than white males to be in three small clusters characterized by high-risk sexual behaviors (i.e., having had sex with a male or with at least 14 partners, or for drugs or money). Black females generally were the least likely to be in high-risk behavior clusters but the most likely to report STDs. CONCLUSIONS: Adolescents' risk behavior patterns vary by race and gender, and do not necessarily correlate with their STD prevalence. Further investigation of adolescents' partners and sexual networks is needed. [source]

Applying marketing channel theory to food marketing in developing countries: Vertical disintegration model for horticultural marketing channels in kenya

AGRIBUSINESS : AN INTERNATIONAL JOURNAL, Issue 2 2001
Tjalling Dijkstra
This article shows that marketing channel theory, which has been extensively applied in developed countries, can also be of great value to the developing world. Notably, the channel approach makes it possible to explain the number of trade levels observed in food marketing systems. We propose here a vertical disintegration model for horticultural marketing channels in Kenya. It contains one dependent variable (the degree of vertical disintegration of a channel) and five independent variables (the population size of the market center served by the channel, the population density of the rural hinterland of that market center, the transport time from farm to market center, the turnover of the retailer involved, and the keeping quality of the commodity traded). Binomial and multinomial logit analyses show that the probability of encountering a more disintegrated horticultural marketing channel increases when the market center has more inhabitants, when the center's rural hinterland is more densely populated, and when the transport to the center takes more time. The probability of encountering a less disintegrated channel increases when the retailer in the channel has a larger turnover and when the traded commodity is a leafy vegetable. [EconLit classification: L190 market structure) © 2001 John Wiley & Sons, Inc. [source]

Pregnancy Intention from Men's Perspectives: Does Child Support Enforcement Matter?

PERSPECTIVES ON SEXUAL AND REPRODUCTIVE HEALTH, Issue 3 2005
Chien-Chung Huang
CONTEXT: Most research on pregnancy intention has focused on women's perspectives and characteristics. Because decisions about sexual activity and contraceptive use usually involve both men and women, it is important to understand factors associated with men's intentions,for example, child support enforcement,to maximize the potential for reducing unwanted pregnancies. METHODS: Data from the 1982,2002 waves of the National Longitudinal Survey of Youth were used in multinomial logit analyses to examine the determinants of pregnancy intention from men's perspectives. RESULTS: Forty-six percent of pregnancies reported by never-married men were unwanted, compared with 21% of those reported by married men. Stronger child support enforcement was marginally associated with men's decreased likelihood of being involved in an unwanted pregnancy compared with no pregnancy (coefficient, ,0.14) and of being involved in an unwanted pregnancy compared with a wanted pregnancy (,0.15). Without the improvement of child support enforcement over the survey period, the rate of unwanted pregnancies would have been an estimated 7% higher than the observed rate. CONCLUSIONS: Strengthening child support enforcement may have a positive impact on preventing unwanted pregnancies. Programs designed to reduce unwanted pregnancies and nonmarital births should include information on child support enforcement to increase their success. [source]

How Do Families Manage Their Economic Hardship?

FAMILY RELATIONS, Issue 4 2010
Eunyoung Baek
Using data from the 2007 Survey of Consumer Finances, this study examined how families manage their economic hardship. A conceptual model was developed based on risk management theory and the permanent income hypothesis. About half of families used credit and about a third used their own savings to make up the difference between income and spending. The results of multinomial logit analysis showed that families' use of management methods differed when they faced economic hardship, depending on their situation. [source]

Mobility and Regional Economic Downturns

JOURNAL OF REGIONAL SCIENCE, Issue 1 2000
R. Scott Hacker
In this paper I show how higher unemployment in a region may reduce thepopulation's residential mobility within that region. A period of higher unemployment creates more uncertainty among individuals about future income and place of employment so those with significant moving costs are more likely to consider delaying a move. Periods of relatively higher unemployment may also be characterized by fewer new hirings and fewer job quits, both of which tend to dampen mobility. A multinomial logit analysis using Panel Study of Income Dynamics data is used to examine the effect of state unemployment rates on the decision to move. [source]

Exploring Correlates of Product Launch in Collaborative Ventures: An Empirical Investigation of Pharmaceutical Alliances

THE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 4 2009
M. Berk Talay
This paper examines collaborative ventures leading toward the launch of new products in the pharmaceutical industry. These collaborative ventures are one of the most underresearched areas in the new product literature, yet the preponderance of these collaborative ventures makes it an area of great importance for scholars and practitioners alike. As such, the purpose of the study is to examine why some collaborative projects produce a favorable outcome (the launch of a product) whereas others do not. That is, what characteristics of partner firms in the collaborative ventures and what characteristics of the partnership lead to a successful launch of a new product in the pharmaceutical industry? Secondary data from the pharmaceutical industry are employed in a multinomial logit model. Data from 128 collaborative ventures from 1980 to 2004 are used in the analysis. The partner firms in the collaborative ventures are from various industries ranging from malt beverages to pharmaceutical preparations to electronic and other equipment among others. Of the 128 collaborative ventures, 66 were successful in leading to a new product launch, whereas 62 did not result in the launch of a new product. The results from the multinomial logit analysis suggest that combined marketing resources of parent companies, combined technological intensity of parent companies, and combined asset bases of parent companies contribute to the likelihood of an eventual product launch in a collaborative venture. However, the results of the analysis show that contrary to expectations, technological complementarity of partners in the collaborative venture is not a significant predictor of successful new product launch. The results of the study suggest certain aspects for managers to consider when establishing collaborative ventures. To maximize the possibilities of the collaborative venture leading to the successful launching of a new product, managers should be concerned with the resources potentially available to partners in the collaborative venture from parent firms. These resources are not only of financial nature but also of technological nature. The existence of these resources does not ensure provision of resources to the collaborative venture; however, without the possibility of these resources it appears that successful launch of a product is less likely. [source]