I have a problem in economics on Economic concept of total costs. Please help me in the following question. The economic concept of total costs and the bookkeeper’s concept of net costs differ as economists: (1) Place a lower value on the psychic income. (2) Comprise psychic income in the explicit revenues. (3) Sum of the explicit costs bookkeeper’s record and the implicit costs bookkeeper’s avoid. (4) Avoid accounting data.
What is the most precise answer?