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Efficiency: The ability of an audio system to convert electrical energy (watts) into mechanical energy (Decibels of acoustical energy). This ratio is usually given as the amount of energy measured in De . . . View Full Definition

Sensitivity (Efficiency): The rating of a loudspeaker that indicates the level of a sound intensity that the speaker produces (in db) at a distance of one meter when it receives one watt of input power.The Efficiency . . . View Full Definition

Semistrong-Form Efficiency: A form of pricing efficiency that profits the price of a security fully reflects all public information (including, but not limited to, historical price and trading patterns). Compare weak-f . . . View Full Definition

Marketplace Price Efficiency: The degree to which the prices of assets reflect the available marketplace information. Marketplace price efficiency is sometimes estimated as the difficulty faced by active management of ea . . . View Full Definition

Pricing Efficiency: Also called external efficiency; a market characteristic that prices at all times fully reflect all available information that is relevant to the valuation of securities.

Efficiency Bandwidth Product (EBP): A parameter that helps determine the suitability of a driver for a sealed or ported enclosure. An EBP of less than 50 indicates the driver should be used in a sealed box, 50 - 90 indicates f . . . View Full Definition

Digestion Efficiency: The fraction of living food that does not survive passage through a predator's gut

Capital Market Efficiency: The market for trading long-term debt instruments (those that mature in more than one year).

External Efficiency: Extending maturity through a swap, e.g. selling a 2-year note and buying one with a slightly longer current maturity.

Assimilation Efficiency: The fraction of ingested food that is absorbed and used in metabolism