Yu Ma

Yu Ma
University of Alberta | UAlberta · Department of Marketing, Business Economics and Law

PhD

About

31
Publications
5,224
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418
Citations

Publications

Publications (31)
Article
Full-text available
There is increasing interest in the effect that food environments may have on obesity, particularly through mechanisms related to the marketing and consumption of calorie-dense, nutrient-poor foods and sugary beverages. Price promotions, such as temporary price discounts, have been particularly effective in the marketing of carbonated soft drinks (...
Article
Objective Geographic measurement of diets is generally not available at areas smaller than a national or provincial (state) scale, as existing nutrition surveys cannot achieve sample sizes needed for an acceptable statistical precision for small geographic units such as city subdivisions. Design Using geocoded Nielsen grocery transaction data coll...
Article
Purpose This paper aims to elucidate some of the complexity around food consumption by drawing from neuroscience research of food as a motivated choice (i.e. a neurobehavioral process sensitive to dopaminergic response to food and environmental cues such as marketing). The authors explore the single and compounded effect of the motivational salienc...
Article
Full-text available
Vegetable consumption remains consistently low despite supportive policy and investments across the world. Vegetables are available in great variety, ranging in their processing level, availability, cost, and arguably, nutritional value. A retrospective longitudinal study was conducted in Quebec, Canada to explore pathways of socioeconomic inequity...
Article
Objectives Global consumption of caffeinated energy drinks (CED) has been increasing dramatically despite increasing evidence of their adverse health effects. Temporary price discounting is a rarely investigated but potentially powerful food marketing tactic influencing purchasing of CED. Using grocery transaction records generated by food stores i...
Article
Full-text available
Background Evidence for the impact of the food retailing environment on food-related and obesity outcomes remains equivocal, but only a few studies have attempted to identify sub-populations for whom this relationship might be stronger than others. Genetic polymorphisms related to dopamine signalling have been associated with differences in respons...
Article
Full-text available
We offer a unified conceptual, behavioral, and econometric framework for optimal fundraising that deals with both synergies and discrepancies between approaches from Economics, Marketing, Psychology and Sociology. The purpose is to offer a framework that can bridge differences and open a dialogue between disciplines in order to facilitate optimal f...
Chapter
Full-text available
Sugar-Sweetened Beverages (SSB) are the primary source of artificially added sugar and cause many chronic diseases. Taxation of SSB has been proposed, but limited evidence exists to guide this public health policy. Grocery transaction data, with price, discounting and other product attributes, present an opportunity to evaluate the likely effects o...
Article
Full-text available
Background/aims: Gene-environment interactions may be relevant for nutrition outcomes. This study assessed the interaction between DRD2/ANKK1 Taq1A genotype and exposures to in-store retail food environment on diet quality. Methods: CARTaGENE biobank data (n = 3,532) were linked to provincial food retail data. The Canadian adaptation of the Heal...
Article
Measurement of neighborhood dietary patterns at high spatial resolution allows public health agencies to identify and monitor communities with an elevated risk of nutrition-related chronic diseases. Currently, data on diet are obtained primarily through nutrition surveys, which produce measurements at low spatial resolutions. The availability of st...
Article
Full-text available
Sugar Sweetened Beverages (SSB) are the primary source of artificially added sugar and have a casual association with chronic diseases. Taxation of SSB has been proposed, but limited evidence exists to guide this public health policy. Grocery transaction data, with price, discounting and other information for beverage products, present an opportuni...
Article
This article studies the impact of shopping at the warehouse club format on households' purchases of packaged food for the home. In addition to low prices, this format has several unique characteristics that can influence packaged food purchases. The empirical analysis uses a combination of households' longitudinal grocery purchase information, ric...
Article
Full-text available
Background: Neighborhood food cues have been inconsistently related to residents' health, possibly due to variations in residents' sensitivity to such cues. This study sought to investigate the degree to which children's predisposition to eat upon exposure to food environment and food cues (external eating), could explain differences in strength o...
Article
Prior ingredient branding research has examined the influence of “stated” factors such as fit between partner brands on composite product (e.g., Tide with Downy fabric softener) attitudes. This research focuses on choice of composite products, and addresses three managerially relevant questions: Which consumer segments are more likely to adopt the...
Article
Building greater reciprocity between traditional and modern food systems and better convergence of human and economic development outcomes may enable the production and consumption of accessible, affordable, and appealing nutritious food for all. Information being key to such transformations, this roadmap paper offers a strategy that capitalizes on...
Article
Added sugar, particularly in carbonated soft drinks (CSDs), represents a considerable proportion of caloric intake in North America. Interventions to decrease the intake of added sugar have been proposed, but monitoring their effectiveness can be difficult due to the costs and limitations of dietary surveys. We developed, assessed the accuracy of,...
Article
Full-text available
In a controlled field experiment, we examine pairs of auctions for identical items under different conditions. We find that auction design features that are under the control of the auctioneer - including information transparency, number of simultaneous auctions, and the degree of overlap between simultaneous auctions - affect bidder search and cho...
Chapter
Full-text available
An increase in dietary intake along with food marketing and changes in the local, national, and global food systems are considered by many as the primary global drivers of the obesity and noncommunicable disease (NCD) pandemics [1]. Empirical evidence from health research [2] has linked long-term change in BMI to consumption of specific food catego...
Article
This study examines how household members' personal characteristics and key marketing factors affect the healthfulness of food purchased for in-home consumption; it further considers how food intake changes following a diagnosis of Type 2 diabetes in the household. Using a combination of grocery purchase over four years, survey data about health st...
Article
We formulate, estimate, and analyze a model of consumer response to promotions where consumers' receipt of the promotional reward is uncertain. The model incorporates consumers' risk aversion and their subjective assessment of the probability that they will get the reward. It is used to assess the effectiveness of a “conditional rebate”, where the...
Article
Full-text available
The authors propose a multicategory model of consumers' purchase incidence, quantity, and brand choice decisions. The model specification allows for cross-category promotion effects in both components of the primary demand (incidence and quantity decisions) and uses a flexible functional form of consumer's utility to accurately measure those crossc...
Article
In this paper, we describe our ongoing effort on the design and development of a knowledge-based system for monitoring and analyzing evidence-based population health indicators, with focus on indicators of chronic diseases related to obesity. The knowledge based system facilitates measuring the quality of obesity prevention programs and assists dia...
Article
Full-text available
We build an econometric model of a household's contemporaneous brand choice outcomes in complementary product categories. This model explicitly captures cross-category dependencies in brand choice outcomes of a household. Such dependencies have not been modeled in existing multi-category demand models. Our model accommodates cross-category dependen...
Article
The authors empirically examine the effect of gas prices on grocery shopping behavior using Information Resources Inc. panel data from 2006 to 2008, which track panelists' purchases of almost 300 product categories across multiple retail formats. The authors quantify the impact on consumers' total spending and examine the potential avenues for savi...
Article
The authors empirically examine the effect of gas prices on grocery shopping behavior using Information Resources Inc. panel data from 2006 to 2008, which track panelists’ purchases of almost 300 product categories across multiple retail formats. The authors quantify the impact on consumers’ total spending and examine the potential avenues for savi...
Article
Full-text available
We build an econometric model of a household's purchase incidence and brand choice decisions in complementary product categories to account for cross-category dependence in demand. Complementarity is modeled as the additional utility that a household derives from the joint consumption of brands in complementary categories. We estimate the proposed...

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