preview

Report Of The Key Points From The Article ' Food Demand

Decent Essays

Summary of the Key Points from the Article
Food demand has been grown which creates a challenge to food availability and access. Food production must expand to balance supply with growing demand, and food has to move efficiently from production to consumption site. Importantly, demand for locally-grown food in the United States has also increased sharply which makes the U.S. Department of Agriculture (USDA) implement regional and local food systems for working with farmers, wholesalers, shippers, processors, and retailers. To assess the implications of significantly increasing the role of locally produced foods in satisfying existing consumer demand, the article, optimal wholesale facilities location within the fruit and vegetables supply …show more content…

For the first two groups, supply constraints and demand constraints which similar to the model in the Global Supply Chain Management class are given as the formulas below. for all i for all j
The third group of the constraints balances the hub inbound and outbound. That means the shipments of the fruit and vegetables, which shipped to a hub and shipped out of that hub, have to be equaled. Those constraints are shown as a formula below. for all h
Lastly, the constraints for the model which should not be ignored are capacity constraints. These constraints determine the upper and lower bound for both supply-to-hub and hub-to-demand node flow for each hub. Also, these constraints ensure that no production and consumption node is assigned to a hub location unless a hub exists or is opened at that site. The constraints are given as the formulas below. for all h for all h for all h for all h where is binary variables, and and are equal or greater than 0.
The article runs the model with three sets of experiments. The first set of experiments examines the effect of unlimited average travel distance, and variable minimum/maximum capacity of hub establishments, on the total number of hubs in the network. The second set of experiments shows the impact of restricted average travel distance and constant minimum capacity of the hubs on the number of hubs when the maximum capacity of the hub is variable. The last set of experiments is

Get Access