Which is a man-made resource? andrea lost her job as an accountant because her company gave the contract for keeping accounts to a firm in asia. the company did so to reduce the costs, as it could find cheap labor in the asian countries. andrea lost her job due to which type of economic activity?

Asupermarket has been experiencing long lines during peak periods of the day. the problem is noticeably worse on certain days of the week, and the peak periods are sometimes different according to the day of the week. there are usually enough workers on the job to open all cash registers. the problem is knowing when to call some of the workers stocking shelves up to the front to work the checkout counters. how might decision models the supermarket? what data would be needed to develop these models?