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A discretionary fixed cost is an expenditure for a period-specific cost or a fixed asset, which can be eliminated or reduced without having an immediate impact on the reported profitability of a business.onsequently, though these costs are classified as discretionary, they should only be reduced when it is absolutely necessary to do so. The following can be considered discretionary fixed costs: 1  Advertising campaigns. 2  Employee training. 3  Investor relations. 4  Public relations.
The short-run and long-run decisions differ because most firms cannot avoid their fixed costs in the short run but can do so in the long run. That is, a firm that shuts down temporarily still has to pay its fixed costs, whereas a firm that exits the market does not have to pay any costs at all, fixed or variable. For example, consider the production decision that a farmer faces. The cost of the land is one of the farmerâs fixed costs.