Indiana University-Purdue University Indianapolis (IUPUI) / The thesis highlights the effectiveness of using location allocation model to find the optimum location of food pantries such that it serves maximum food insecure households. Since most households do not have personal means of transportation, the model makes sure that the food pantries are accessible at a walkable distance from the households. To reduce the shortage of food that the food pantries often face, the pantries are located near the food rescue sites like grocery stores, restaurants and institutional canteens. In this way, extra edible food with myriad choices can be diverted to the food insecure population at a walkable distance . Reducing food loss and food insecurity helps us move towards a better , more sustainable future.

The challenges of sustainability and its complexities born out of overexploitation of resources, leading to climate change issues, food wastage, and scarcity, economic and health-related dilemmas, has yet to find their solution in top-down models, taking the form of hierarchical control (rulers), as such, researchers have considered other alternatives to how communities can tackle these issues, and one of such approach is the bottom-up model. Recent research and literature on collective action have focused on sequencing events like regime changes, riots, revolutions, protests, and the founding of social movement organizations. This study ethnographically investigated the relevant factors for collective action and factors influencing individual cooperation in the local community initiative, Food Rescue Gotland, through a four-week participant observation with eight in-depth interviews. The relevant factors identified in this context were a sense of community, passion for sustainability, good atmosphere for work, committed volunteers and trust, availability of resources and goodwill ambassadors, ease of participation, small size, effective communication, and good structure. Significant factors influencing individual cooperation include knowledge about sustainability, a sense of belonging, and a shared sense of community. This study contributes to the broader literature on successful collective action for sustainability in the context of local community initiatives. It contributes further to the replicability of this kind of local community initiative in other communities and awareness of its impact on Gotland Island, Sweden.

In the United States (U.S.), up to 40% of the entire food supply is lost or wasted, which contributes to negative environmental, economic, and social outcomes, with the majority of food waste occurring in the retail and consumer sectors of the food supply chain. Concurrently, 10.5% of U.S. households experienced food insecurity in 2019. Food insecurity rates are higher among individuals with low income and disproportionately affects ethically and racially diverse people living in poverty. Diverting excess food from retail and institutional settings to people in need is one method to reduce food waste and enhance individual, household, and community food security. This PhD dissertation describes four studies that explored food waste management in the U.S. among households with low-income and within U.S. food pantries, which are a critical component of the emergency food system. Study 1 consisted of a systematic review that examined differences in food waste attitudes and practices among consumers of across income levels. Study 2 was a quantitative research methods approach to examine food waste attitudes and practices of SNAP-eligible households (n=17). Study 3 was a cross-sectional quantitative approach to examine the impact of the novel coronavirus disease (COVID-19) pandemic on food waste management within U.S. food pantries (n=290). Study 4 assessed the feasibility of food pantries in Virginia (n=68) to implement marketing-mix and choice-architecture (MMCA) strategies within their food pantries given the changes they had to make in their food distribution models in response to COVID-19 physical distancing requirements. Collectively, the studies described in this PhD dissertation address knowledge gaps and may be used to inform policies and initiatives to increase food security and decrease food waste among households with low-income and organizations aimed at serving them. / Doctor of Philosophy / Food waste in the U.S. is a major challenge that impacts the environment, economy, and society. The largest amounts of food waste are generated within food retail and consumer household settings. Concurrently, food insecurity, which is defined as obtaining and having access to enough food for an adequate, nutritious diet, is also another complex food systems challenge in the U.S. Food insecurity rates are higher among people with low income and disproportionately affects ethnically and racially diverse people. The novel coronavirus (COVID-19) pandemic placed further pressure on these two food systems challenges. Diverting excess, wholesome food from retail and institutional settings to people with hunger is a preferred method to mitigate both food waste levels and food insecurity rates. The U.S. emergency food system, which is a network of food recovery organizations that aim to receive excess food from retail settings and redistribute the food to people with hunger, play a pivotal role in addressing these two challenges. This PhD dissertation described four studies that address these two challenges. While this dissertation examined food waste management, the first half of the dissertation explored this topic within households and the second half explored food waste management within food pantries, which are a critical component to the U.S. emergency food system. Study 1 utilized a systematic procedure to review previously published consumer food waste research. The purpose of this study was to examine differences in food waste attitudes and practices among consumers of various income levels. Study 2 used a survey to examine food waste attitudes and practices of households eligible for Supplemental Nutrition Assistance Program (SNAP) benefits. Study 3 explored the impact of COVID-19 physical distancing requirements on food waste management within U.S. food pantries. Lastly, study 4 explored the feasibility of food pantry staff/volunteers on implementing behavioral economics strategies, which are changes to a setting that can promote selection of a certain food item, within their food pantry. Collectively, the studies described in this PhD dissertation address knowledge gaps and may inform policies and initiatives to mutually increase food security and decrease food waste among households with low-income and organizations aimed at serving them.