accounting income and cash flow? Which do we need to use when making decisions by using NPV? Explain in short.

Accounting income takes in consideration total profits; which is usually some form of total revenues minus total expenses. Cash flow is a totally different concept because it doesn't necessarily account for total income, rather it just accounts for cash out flows and in flows. For example, it may not account for various administrative costs or wages that are paid to employees and it may not account for the total income of the organization but just for one specific project.

A positive NPV is a good start -- now we need to take a closer look

Forecasting risk: How sensitive is our NPV to changes in the cash flow estimates; the more sensitive, the greater the forecasting risk (explain which conditions we accept the risk for both investors and company point...
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