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In the LM model of interest rate determination, [1]: pp. 261–7 the supply of and demand for money determine the interest rate contingent on the level of the money supply, so the money supply is an exogenous variable and the interest rate is an endogenous variable.
Suppose that the level of pest infestation is independent of all other factors within a given period, but is influenced by the level of rainfall and fertilizer in the preceding period. In this instance it would be correct to say that infestation is exogenous within the period, but endogenous over time. Let the model be y = f(x, z) + u.
Endogenous is a process that develops as a part of species biology so they typically include changes in biology, behavior, and interactions within or between species. Endogenous threats can result in changes to breeding patterns or migration patterns and are often triggered by exogenous processes.
Endogenous processes such as volcanoes, earthquakes, and tectonic uplift can expose continental crust to the exogenous processes of weathering, erosion, and mass wasting. The effects of denudation have been recorded for millennia but the mechanics behind it have been debated for the past 200 years [ when? ] and have only begun to be understood ...
He developed endogenous money very gradually, and not until 1979, in Eichner's Guide, did he have come around to 'monetary factors' or endogenous money. Gunnar Heinsohn and Otto Steiger in their book "Eigentum, Zins und Geld" developed a theory called "Property Theory of Money", which also explains money by endogenous processes.
Economic geography is the subfield of human geography that studies economic activity and factors affecting it. It can also be considered a subfield or method in economics . [ 1 ]
An environmental factor, ecological factor or eco factor is any factor, abiotic or biotic, that influences living organisms. [1] Abiotic factors include ambient temperature , amount of sunlight , air, soil, water and pH of the water soil in which an organism lives.
Economists Jeffrey Sachs and John Luke Gallup have examined the direct impacts of geographic and climatic factors on economic development, especially the role of geography on the cost of trade and access to markets, the disease environment, and agricultural productivity.