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Durability is the ability of a physical product to remain functional, without requiring excessive maintenance or repair, when faced with the challenges of normal operation over its design lifetime. [ 1 ] : 5 There are several measures of durability in use, including years of life, hours of use, and number of operational cycles. [ 2 ]
A car is a durable good. The gasoline that powers it is a non-durable (or consumable) good.. In economics, a durable good or a hard good or consumer durable is a good that does not quickly wear out or, more specifically, one that yields utility over time rather than being completely consumed in one use.
Thermoeconomics can be thought of as the statistical physics of economic value [2] and is a subfield of econophysics. It is the study of the ways and means by which human societies procure and use energy and other biological and physical resources to produce, distribute, consume and exchange goods and services, while generating various types of ...
It is also different from product economic life which refers to the point where maintaining a product is more expensive than replacing it; [2] from product technical life which refers to the maximum period during which a product has the physical capacity to function; [3] and from the functional life which is the time a product should last ...
By definition the likelihood function is the conditional probability of the data given the parameters of the model. It is customary to assume that the data are independent given the parameters. Then the likelihood function is the product of the likelihood of each datum.
A primary objective of ecological economics (EE) is to ground economic thinking and practice in physical reality, especially in the laws of physics (particularly the laws of thermodynamics) and in knowledge of biological systems. It accepts as a goal the improvement of human well-being through development, and seeks to ensure achievement of ...
In systems engineering, dependability is a measure of a system's availability, reliability, maintainability, and in some cases, other characteristics such as durability, safety and security. [1] In real-time computing , dependability is the ability to provide services that can be trusted within a time-period. [ 2 ]
Complexity economics draws inspiration from behavioral economics, Marxian economics, institutional economics/evolutionary economics, Austrian economics and the work of Adam Smith. [18] It also draws inspiration from other fields, such as statistical mechanics in physics, and evolutionary biology .