Which are the important elements in the determination of investment?

Following are the three elements important in the determination of investment:
(i) Expected returns or revenue An investment is undertaken on the basis of expected demand or expected returns to the producers.
(ii) Costs It has three components viz, cost of purchase of equipment, cost of maintenance of equipment (depreciation) and cost of funds borrowed for investment.
(iii) Business expectations Bullish expectations attract more investment. Bearish expectations result in low investment.