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  2. Econophysics - Wikipedia

    en.wikipedia.org/wiki/Econophysics

    Basic tools of econophysics are probabilistic and statistical methods often taken from statistical physics.. Physics models that have been applied in economics include the kinetic theory of gas (called the kinetic exchange models of markets [7]), percolation models, chaotic models developed to study cardiac arrest, and models with self-organizing criticality as well as other models developed ...

  3. Archimedes' principle - Wikipedia

    en.wikipedia.org/wiki/Archimedes'_principle

    (This formula is used for example in describing the measuring principle of a dasymeter and of hydrostatic weighing.) Example: If you drop wood into water, buoyancy will keep it afloat. Example: A helium balloon in a moving car. When increasing speed or driving in a curve, the air moves in the opposite direction to the car's acceleration.

  4. Profit maximization - Wikipedia

    en.wikipedia.org/wiki/Profit_maximization

    Marginal cost and marginal revenue, depending on whether the calculus approach is taken or not, are defined as either the change in cost or revenue as each additional unit is produced or the derivative of cost or revenue with respect to the quantity of output. For instance, taking the first definition, if it costs a firm $400 to produce 5 units ...

  5. Physics - Wikipedia

    en.wikipedia.org/wiki/Physics

    Physics is the scientific study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. [1] Physics is one of the most fundamental scientific disciplines. [2] [3] [4] A scientist who specializes in the field of physics is called a physicist.

  6. Mass balance - Wikipedia

    en.wikipedia.org/wiki/Mass_balance

    In physics, a mass balance, also called a material balance, is an application of conservation of mass [1] to the analysis of physical systems.By accounting for material entering and leaving a system, mass flows can be identified which might have been unknown, or difficult to measure without this technique.

  7. Cost–volume–profit analysis - Wikipedia

    en.wikipedia.org/wiki/Cost–volume–profit...

    Total costs = fixed costs + (unit variable cost × number of units) Total revenue = sales price × number of unit These are linear because of the assumptions of constant costs and prices, and there is no distinction between units produced and units sold, as these are assumed to be equal.

  8. Implicit cost - Wikipedia

    en.wikipedia.org/wiki/Implicit_cost

    In economics, an implicit cost, also called an imputed cost, implied cost, or notional cost, is the opportunity cost equal to what a firm must give up in order to use a factor of production for which it already owns and thus does not pay rent. It is the opposite of an explicit cost, which is borne directly. [1]

  9. Economic base analysis - Wikipedia

    en.wikipedia.org/wiki/Economic_base_analysis

    If its economic base is concentrated in sectors that are growing, then it is in good shape. Methodologically, economic base analysis views the region as if it were a small nation and uses notions of relative and comparative advantage from international trade theory (Charles Tiebout 1963). In a sense, the activity is macroeconomics "written ...