The long run is best defined as a time period during which at least one input cannot be changed. during which all inputs can be varied. during which consumer demand for goods and services change. that is longer than two years. One thing that distinguishes the short run and the long run is the number of months considered. implicit costs. the existence of marginal costs. the existence of at least one fixed input.

Anew firm is developing its business plan. it will require $615,000 of assets, and it projects $450,000 of sales and $355,000 of operating costs for the first year. management is reasonably sure of these numbers because of contracts with its customers and suppliers. it can borrow at a rate of 7.5%, but the bank requires it to have a tie of at least 4.0, and if the tie falls below this level the bank will call in the loan and the firm will go bankrupt. what is the maximum debt ratio the firm can use? (hint: find the maximum dollars of interest, then the debt that produces that interest, and then the related debt ratio.)a. 41.94%b. 44.15%c. 46.47%d. 48.92%e. 51.49%