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  2. Local volatility - Wikipedia

    en.wikipedia.org/wiki/Local_volatility

    In mathematical finance, the asset S t that underlies a financial derivative is typically assumed to follow a stochastic differential equation of the form = +, under the risk neutral measure, where is the instantaneous risk free rate, giving an average local direction to the dynamics, and is a Wiener process, representing the inflow of randomness into the dynamics.

  3. Health economics - Wikipedia

    en.wikipedia.org/wiki/Health_economics

    The knowledge gap that exists between a physician and a patient creates a situation of distinct advantage for the physician, which is called asymmetric information. [citation needed] Externalities arise frequently when considering health and health care, notably in the context of the health impacts as with infectious disease or opioid abuse.

  4. Utilization management - Wikipedia

    en.wikipedia.org/wiki/Utilization_management

    Utilization management is "a set of techniques used by or on behalf of purchasers of health care benefits to manage health care costs by influencing patient care decision-making through case-by-case assessments of the appropriateness of care prior to its provision," as defined by the Institute of Medicine [1] Committee on Utilization Management by Third Parties (1989; IOM is now the National ...

  5. Cost–utility analysis - Wikipedia

    en.wikipedia.org/wiki/Cost–utility_analysis

    There are criticisms of QALY. One involves QALY's lack of usefulness to the healthcare provider in determining the applicability of alternative treatments in the individual patient environment, [3] and the absence of incorporating the patient's willingness to pay (i.e. behavioral economics) in decisions to finance new treatments. [4]

  6. Stochastic differential equation - Wikipedia

    en.wikipedia.org/wiki/Stochastic_differential...

    Stochastic differential equations originated in the theory of Brownian motion, in the work of Albert Einstein and Marian Smoluchowski in 1905, although Louis Bachelier was the first person credited with modeling Brownian motion in 1900, giving a very early example of a stochastic differential equation now known as Bachelier model.

  7. Healthcare industry - Wikipedia

    en.wikipedia.org/wiki/Healthcare_industry

    This is an accepted version of this page This is the latest accepted revision, reviewed on 9 December 2024. Economic sector focused on health An insurance form with pills The healthcare industry (also called the medical industry or health economy) is an aggregation and integration of sectors within the economic system that provides goods and services to treat patients with curative, preventive ...

  8. Finite difference methods for option pricing - Wikipedia

    en.wikipedia.org/wiki/Finite_difference_methods...

    In general, finite difference methods are used to price options by approximating the (continuous-time) differential equation that describes how an option price evolves over time by a set of (discrete-time) difference equations. The discrete difference equations may then be solved iteratively to calculate a price for the option. [4]

  9. List of business and finance abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_business_and...

    In this equation, Ke (COE) equals the anticipated return from the difference (Beta) of investment yields from a return based on market expectations (Rm) [9] and a Risk Free Rate (Rf), such as Treasury Bills or Bonds. KIBOR – Karachi Interbank Offered Rate; KPI – Key Performance Indicator, a type of performance measurement. An organization ...