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Arbitrage (/ ˈ ɑːr b ɪ t r ɑː ʒ /, UK also /-t r ɪ dʒ /) is the practice of taking advantage of a difference in prices in two or more markets – striking a combination of matching deals to capitalize on the difference, the profit being the difference between the market prices at which the unit is traded. Arbitrage has the effect of ...
In finance, arbitrage pricing theory (APT) is a multi-factor model for asset pricing which relates various macro-economic (systematic) risk variables to the pricing of financial assets. Proposed by economist Stephen Ross in 1976, [ 1 ] it is widely believed to be an improved alternative to its predecessor, the capital asset pricing model (CAPM ...
The fundamental theorems of asset pricing (also: of arbitrage, of finance), in both financial economics and mathematical finance, provide necessary and sufficient conditions for a market to be arbitrage-free, and for a market to be complete. An arbitrage opportunity is a way of making money with no initial investment without any possibility of ...
Limits to arbitrage is a theory in financial economics that, due to restrictions that are placed on funds that would ordinarily be used by rational traders to arbitrage away pricing inefficiencies, prices may remain in a non-equilibrium state for protracted periods of time.
Financial markets have been an object for sociological inquiry since, at least, Max Weber’s Die Börse. The rise of quantitative financial theory in financial economics from the 1950s onwards has led to an academic specialization on financial markets rather focused on economic modeling, and poorly attentive to sociological aspects. In the ...
The arbitrage pricing theory (APT), a general theory of asset pricing, has become influential in the pricing of shares. APT holds that the expected return of a financial asset can be modelled as a linear function of various macro-economic factors, where sensitivity to changes in each factor is represented by a factor specific beta coefficient:
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 ...
The pooling effect in the used car market also happens in the employment market for minorities. [citation needed] One of the most notable impacts of Akerlof's work is its impact on Keynesian theory. [13] Akerlof argues that the Keynesian theory of unemployment being voluntary implies that quits would rise with unemployment.