While there is no agreed upon criteria, the most common definition is that premature ejaculation occurs if the man ejaculates within two minutes of penetration [1]; however, a survey by Alfred Kinsey in the 1940s demonstrated that three quarters of men ejaculate within two minutes of penetration in over half of their sexual encounters. [2]
Free cash flow is a company's operational cash flow with the effect of its current growth rate removed. Cash Flow to Firm Free cash flow can flow to equity or to the firm in general.
Free cash flow can be calculated in various ways, depending on audience and available data. A common measure is to take the earnings before interest and taxes multiplied by (1 - tax rate), add depreciation and amortization, and then subtract changes in working capital and capital expenditure.