A valuation method that estimates the value of an investment based on its expected future cash flows, adjusted for the time value of money using a discount rate. This technique brings future cash flows back to present value terms for comparison and decision-making.
The methodology developed from 19th-century actuarial mathematics and was refined by financial economists in the mid-20th century. The 'discounting' concept comes from the practice of reducing future values to account for risk and time preferences. It became standard in corporate finance and investment banking by the 1970s.
DCF is like judging a fruit tree not by how it looks today, but by calculating the present value of all the fruit it will produce over its lifetime! The tricky part is that you're essentially predicting the future and then deflating those predictions - which is why DCF models are both powerful and dangerous.
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