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Credibility theory. Credibility theory is a branch of actuarial mathematics concerned with determining risk premiums. [1] To achieve this, it uses mathematical models in an effort to forecast the (expected) number of insurance claims based on past observations.
Bühlmann model. In credibility theory, a branch of study in actuarial science, the Bühlmann model is a random effects model (or "variance components model" or hierarchical linear model) used to determine the appropriate premium for a group of insurance contracts. The model is named after Hans Bühlmann who first published a description in 1967.
Adverse selection. In economics, insurance, and risk management, adverse selection is a market situation where asymmetric information results in a party taking advantage of undisclosed information to benefit more from a contract or trade. In an ideal world, buyers should pay a price which reflects their willingness to pay and the value to them ...
Positive accounting can be associated with the contractual view of the firm. [1][2] The firm is viewed as “a nexus of contracts ” and accounting one tool to facilitate the formation and performance of contracts. Under this view, accounting practices evolve to mitigate contracting costs by establishing ex ante agreement among varying parties.
In American slang, a lemon is a car that is found to be defective after it has been bought. Akerlof's theory of the "Market for Lemons" paper applies to markets with information asymmetry, focusing on the used car market. Information asymmetry within the market relates to the seller having more information about the quality of the car as ...
Substance over form is an accounting principle used "to ensure that financial statements give a complete, relevant, and accurate picture of transactions and events". If an entity practices the 'substance over form' concept, then the financial statements will convey the overall financial reality of the entity (economic substance), rather than simply reporting the legal record of transactions ...
Credibility comprises the objective and subjective components of the believability of a source or message. Credibility dates back to Aristotle theory of Rhetoric. Aristotle defines rhetoric as the ability to see what is possibly persuasive in every situation. He divided the means of persuasion into three categories, namely Ethos (the source's ...
Purchasing power parity is an economic term for measuring prices at different locations. It is based on the law of one price, which says that, if there are no transaction costs nor trade barriers for a particular good, then the price for that good should be the same at every location. [1] Ideally, a computer in New York and in Hong Kong should ...