As a nation's workers become more productive, what is freed up for use
elsewhere in the economy?

If an investment has 35 percent more nondiversifiable risk than the market portfolio, its beta will be:

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?

Goldman services hired a new clerk to keep custody of and maintain all the equipment in the equipment yard. the clerk has not yet been adequately trained on the maintenance needs of the equipment. which internal control procedure needs strengthening?