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The Gordon-Schaefer model is a bioeconomic model applied in the fishing industry.It may be used to compute the maximum sustainable yield.It takes account of biological growth rates, carrying capacity, and total and marginal costs and revenues.
At , a slightly higher harvest rate, however there is only one equilibrium point (at ), which is the population size that produces the maximum growth rate. With logistic growth, this point, called the maximum sustainable yield, is where the population size is half the carrying capacity (or N = K 2 {\displaystyle N={\frac {K}{2}}} ).
The concept of maximum sustainable yield (MSY) has been used in fisheries science and fisheries management for more than a century. Originally developed and popularized by Fedor Baranov early in the 1900s as the "theory of fishing," it is often credited with laying the foundation for the modern understanding of the population dynamics of fisheries. [1]
Traditional inflation-free rate of interest for risk-free loans: 3-5%; Expected rate of inflation: 5%; The anticipated change in the rate of inflation, if any, over the life of the investment: Usually taken at 0%; The risk of defaulting on a loan: 0-5%; The risk profile of a particular venture: 0-5% and higher
The "risk-free" rate on US dollar investments is the rate on U.S. Treasury bills, because this is the highest rate available without risking capital. The rate of return which an investor requires from a particular investment is called the discount rate, and is also referred to as the (opportunity) cost of capital.
Inverted yield curves happen when bonds with shorter maturity periods have higher yields than bonds with longer maturity periods. Under normal circumstances, it’s the other way around.
Here's what an expert says about their high-yield account — including real-life earnings. ... Despite the Fed's three consecutive rate cuts in 2024, these high-yield accounts still offer yields ...
Sustainable yield is the amount of a resource that humans can harvest without over-harvesting or damaging a potentially renewable resource. [1]In more formal terms, the sustainable yield of natural capital is the ecological yield that can be extracted without reducing the base of capital itself, i.e. the surplus required to maintain ecosystem services at the same or increasing level over time. [2]