“It is essential to constrain all shipments in a transportation problem to have integer values to ensure that the optimal LP solution consists entirely of integer valued shipments.” Is this statement...

“It is essential to constrain all shipments in a transportation problem to have integer values to ensure that the optimal LP solution consists entirely of integer valued shipments.” Is this statement true or false? Why?

What is the relationship between transportation models and more general logistics models? Explain how these two types of linear optimization models are similar and how they are different