As an application of digital concepts, unattended convenience stores are widely disseminated and considered one the trends future business development. It is important consideration for development to determine potential operation efficiency improve inefficient units. This paper establishes a bi-level DEA model with multi-followers uses weak disposability technology deal undesirable intermediat...

BACKGROUND Aspects of the food environment such as the availability of different types of food stores have recently emerged as key modifiable factors that may contribute to the increased prevalence of obesity. Given that many of these studies have derived their results based on secondary datasets and the relationship of food stores with individual weight outcomes has been reported to vary by st...

BACKGROUND Few studies have focused on the relationship between the retail food environment and household food supplies. This study examines spatial access to retail food stores, food shopping habits, and nutrients available in household food supplies among 50 Mexican-origin families residing in Texas border colonias. METHODS The design was cross-sectional; data were collected in the home Mar...

OBJECTIVE To assess food supply adequacy within 3 food store types in the Lower Mississippi Delta. DESIGN Regional food store survey to determine availability and quality of 102 food items in 62 supermarkets, 77 small/medium stores, and 86 convenience stores. SETTING Lower Mississippi Delta region of the United States. PARTICIPANTS 225 food stores in 18 counties. MAIN OUTCOME MEASURES P...