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In economics, the law of one price (LOOP) states that in the absence of trade frictions (such as transport costs and tariffs), and under conditions of free competition and price flexibility (where no individual sellers or buyers have power to manipulate prices and prices can freely adjust), identical goods sold at different locations should be sold for the same price when prices are expressed ...
Rational pricing is the assumption in financial economics that asset prices – and hence asset pricing models – will reflect the arbitrage-free price of the asset as any deviation from this price will be "arbitraged away". This assumption is useful in pricing fixed income securities, particularly bonds, and is fundamental to the pricing of ...
The just price is a theory of ethics in economics that attempts to set standards of fairness in transactions. With intellectual roots in ancient Greek philosophy , it was advanced by Thomas Aquinas based on an argument against usury , which in his time referred to the making of any rate of interest on loans .
The law of one price is weakened by transport costs and governmental trade restrictions, which make it expensive to move goods between markets located in different countries. Transport costs sever the link between exchange rates and the prices of goods implied by the law of one price.
By the law of one price, entirely tradable goods cannot vary greatly in price by location because buyers can source from the lowest cost location. However, most services must be delivered locally (e.g. hairdressing), and many manufactured goods such as furniture have high transportation costs or, conversely, low value-to-weight or low value-to-bulk ratios, which makes deviations from the law ...
Unlike modern mainstream economists, Cheung's analysis does not rely on advanced mathematical techniques but solely on the two basic building blocks of price theory: one is the axiom of constrained maximisation and the other, the law of demand (one that already incorporates the law of diminishing marginal returns).
The competitive price system according to Paul Samuelson A price display for a tagged clothes item at Kohl's. A price is the (usually not negative) quantity of payment or compensation expected, required, or given by one party to another in return for goods or services.
Price dispersion can be viewed as a measure of trading frictions (or, tautologically, as a violation of the law of one price). It is often attributed to consumer search costs or unmeasured attributes (such as the reputation) of the retailing outlets involved. There is a difference between price dispersion and price discrimination. The latter ...