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  2. Efficiency - Wikipedia

    en.wikipedia.org/wiki/Efficiency

    Efficiency. Efficiency is the often measurable ability to avoid making mistakes or wasting materials, energy, efforts, money, and time while performing a task. In a more general sense, it is the ability to do things well, successfully, and without waste. In more mathematical or scientific terms, it signifies the level of performance that uses ...

  3. Economic efficiency - Wikipedia

    en.wikipedia.org/wiki/Economic_efficiency

    Economic efficiency. In microeconomics, economic efficiency, depending on the context, is usually one of the following two related concepts: [ 1 ] Allocative or Pareto efficiency: any changes made to assist one person would harm another. Productive efficiency: no additional output of one good can be obtained without decreasing the output of ...

  4. Efficiency (statistics) - Wikipedia

    en.wikipedia.org/wiki/Efficiency_(statistics)

    Efficiency (statistics) In statistics, efficiency is a measure of quality of an estimator, of an experimental design, [1] or of a hypothesis testing procedure. [2] Essentially, a more efficient estimator needs fewer input data or observations than a less efficient one to achieve the Cramér–Rao bound. An efficient estimator is characterized ...

  5. Productive efficiency - Wikipedia

    en.wikipedia.org/wiki/Productive_efficiency

    Productive efficiency is an aspect of economic efficiency that focuses on how to maximize output of a chosen product portfolio, without concern for whether your product portfolio is making goods in the right proportion; in misguided application, it will aid in manufacturing the wrong basket of outputs faster and cheaper than ever before.

  6. Efficient energy use - Wikipedia

    en.wikipedia.org/wiki/Efficient_energy_use

    Efficient energy use, or energy efficiency, is the process of reducing the amount of energy required to provide products and services. There are many technologies and methods available that are more energy efficient than conventional systems. For example, insulating a building allows it to use less heating and cooling energy while still ...

  7. Electrical efficiency - Wikipedia

    en.wikipedia.org/wiki/Electrical_efficiency

    The efficiency of a system in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed (a fractional expression), typically denoted by the Greek small letter eta (η – ήτα). If energy output and input are expressed in the same units, efficiency is a dimensionless number. [1]

  8. Allocative efficiency - Wikipedia

    en.wikipedia.org/wiki/Allocative_efficiency

    Allocative efficiency. Allocative efficiency is a state of the economy in which production is aligned with the preferences of consumers and producers; in particular, the set of outputs is chosen so as to maximize the social welfare of society. [1] This is achieved if every produced good or service has a marginal benefit equal to the marginal ...

  9. Operational efficiency - Wikipedia

    en.wikipedia.org/wiki/Operational_efficiency

    Operational efficiency. In a business context, operational efficiency is a measurement of resource allocation and can be defined as the ratio between an output gained from the business and an input to run a business operation. When improving operational efficiency, the output to input ratio improves. Inputs would typically be money (cost ...