Virtuous circle and vicious circle
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The terms virtuous circle and vicious circle (also referred to as virtuous cycle and vicious cycle) refer to complex chains of events that reinforce themselves through a feedback loop. A virtuous circle has favorable results, while a vicious circle has detrimental results.
Both circles are complex chains of events with no tendency toward equilibrium (social, economic, ecological, etc.)—at least in the short run. Both systems of events have feedback loops in which each iteration of the cycle reinforces the previous one (positive feedback). These cycles will continue in the direction of their momentum until an external factor intervenes and breaks the cycle.
A well-known example of a vicious circle in economics is hyperinflation.
Vicious circles in the subprime mortgage crisis
The contemporary subprime mortgage crisis is a complex group of vicious circles, both in its genesis and in its manifold outcomes, most notably the late 2000s recession. A specific example is the circle related to housing. As housing prices decline, more homeowners go "underwater", when the market value of a home drops below the mortgage on it. This provides an incentive to walk away from the home, increasing defaults and foreclosures. This, in turn, lowers housing values further from over-supply, reinforcing the cycle.
The foreclosures reduce the cash flowing into banks and the value of mortgage-backed securities (MBS) widely held by banks. Banks incur losses and require additional funds, also called “recapitalization”. If banks are not capitalized sufficiently to lend, economic activity slows and unemployment increases, which further increase the number of foreclosures.
Designing ecological virtuous circles
By involving all stakeholders in managing ecological areas, a virtuous circle can be created where improved ecology encourages the actions that maintain and improve the area.
- Catch-22 (logic)
- Causal loop diagram
- Cycle of poverty
- Closed timelike curve
- Endogeneity (econometrics)
- Positive feedback
- Rational addiction
- Reflexivity (sociology)
- Self-fulfilling prophecy
- Spiral of silence
- Unintended consequences
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- Schlesinger, L.; Heskett, J. (1991). "Breaking the cycle of failure in services". Sloan Management Review. 31: 17–28.
- Rational Choice with Passion:Virtue in a Model of Rational Addiction – In this link the author uses Aristotelian virtue as a mediator between passion and reason in the construction of utility/consumption functions in an esoteric part of consumer behaviour theory related to decision making in addictive situations.
- China: A Stabilizing or Deflationary Influence in East Asia? The Problem of Conflicted Virtue – In this link the author is using virtue in the sense of a positive outcome (balance of payments surplus) that conflicts with long term regional growth and stability.