Browsing by Author "Khan, Romana"

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Hierarchical modeling of choice concentration of US households
(Wiley, 2014) Jeliazkov, I.; Yang, X.-S.; Hansen, K. T.; Khan, Romana; Singh, V.; Business Administration; Jeliazkov, I.; Yang, X. S.; KHAN, Romana
This chapter contains sections titled: Introduction Data Description Measures of Choice Concentration Methodology Results Interpreting θ Decomposing the Effects of Time, Number of Decisions and Concentration Preference Conclusion.
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Ideology and brand consumption
(Sage, 2013-03) Khan, Romana; Misra, K.; Singh, V.; Business Administration; KHAN, Romana
Do mundane daily choices, such as what brands people buy in a supermarket, reflect aspects of values and ideologies? This article presents a large-scale field study performed to determine whether traits associated with a conservative ideology, as measured by voting behavior and religiosity, are manifested in consumers’ routine, seemingly inconsequential product choices. Our analysis of market shares for a variety of frequently purchased products shows that both of these measures of conservatism are associated with a systematic preference for established national brands (as opposed to their generic substitutes) and with a lower propensity to buy newly launched products. These tendencies correspond with other psychological traits associated with a conservative ideology, such as preference for tradition and the status quo, avoidance of ambiguity and uncertainty, and skepticism about new experiences.
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Will a fat tax work?
(Wiley, 2016-01) Khan, Romana; Misra, K.; Business Administration; KHAN, Romana
Of the many proposals to reverse the obesity epidemic, the most contentious is the use of price-based interventions such as the fat tax. Previous investigations of the efficacy of such initiatives in altering consumption behavior yielded contradictory findings. In this article, we use six years of point-of-sale scanner data for milk from a sample of over 1,700 supermarkets across the United States to investigate the potential of small price incentives for inducing substitution of healthier alternatives. We exploit a pricing pattern particular to milk in the United States, whereby prices in some geographical regions are flat across whole, 2%, 1%, and skim milk; whereas in other regions they are decreasing with the fat content level. The prevailing price structure is determined at a chain and regional level, and is independent of local demand conditions. This exogenous variation in price structure provides a quasi-experimental set-up to analyze the impact of small price differences on substitution across fat content. We use detailed demographics to evaluate price sensitivity and substitution patterns for different socioeconomic groups. Results show that small price differences are highly effective in inducing substitution to lower calorie options. The impact is highest for low-income households who are also most at risk for obesity. Our results suggest that a selective taxation mechanism that lowers the relative prices of healthier options, such that those price changes are reflected in shelf prices at the point-of-purchase, can serve as an effective health policy tool in the efforts to control obesity.