Search results
Results from the WOW.Com Content Network
It was finally identified that the cycle of high and low catches ran over approximately a ten-year period. The most well known example of creatures which have a population cycle is the lemming. [3] The biologist Charles Sutherland Elton first identified in 1924 that the lemming had regular cycles of population growth and decline. When their ...
It is caused by self-reinforcing mechanisms that cause poverty, once it exists, to persist unless there is outside intervention. [2] It can persist across generations, and when applied to developing countries, is also known as a development trap. [3] Families trapped in the cycle of poverty have few to no resources.
In Africa, yield reduction is 2–40%, with an average loss of 8.2% of the continent. [8] Natural disasters: natural disasters such as mud flows, floods are responsible for the death of many living beings each year. This causes a cycle as floods can degrade soil, and soil degradation can cause floods.
Keynesian economics advocates the use of automatic and discretionary countercyclical policies to lessen the impact of the business cycle. One example of an automatically countercyclical fiscal policy is progressive taxation. By taxing a larger proportion of income when the economy expands, a progressive tax tends to decrease demand when the ...
According to another definition, it is "a change from a baseline state beyond the point where an ecosystem has lost key defining features and functions, and is characterised by declining spatial extent, increased environmental degradation, decreases in, or loss of, key species, disruption of biotic processes, and ultimately loss of ecosystem ...
A vicious circle (or cycle) is a complex chain of events that reinforces itself through a feedback loop, with detrimental results. [1] It is a system with no tendency toward equilibrium (social, economic, ecological, etc.), at least in the short run. Each iteration of the cycle reinforces the previous one, in an example of positive feedback. A ...
Irruptive growth is a growth pattern over time, defined by a sudden rapid growth in the population of an organism. Irruptive growth is studied in population ecology. [1] Population cycles often display irruptive growth, but with a predictable pattern of subsequent decline. [2] It is a phenomenon typically associated with r-strategists.
Business cycles are a type of fluctuation found in the aggregate economic activity of nations that organize their work mainly in business enterprises: a cycle consists of expansions occurring at about the same time in many economic activities, followed by similarly general recessions, contractions, and revivals which merge into the expansion ...