product substitution

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• product substitution — ➔ substitution * * * product substitution UK US noun ► [C] COMMERCE a product that can be used instead of a similar product: »If an item is out of stock, a product substitution is offered in its place. ► [U] a situation where a cheap product has… …   Financial and business terms

• substitution — The principle by which CME Clearing becomes the buyer to every seller and the seller to every buyer upon the successful matching of two trade records or upon the successful completion of initial settlement for ex pit transactions. Chicago… …   Financial and business terms

• Substitution bias — describes a bias in economics index numbers arising from tendency to purchase inexpensive alternatives for expensive items when prices change.Substitution bias occurs when two or more items experience a change of price relative to each other.… …   Wikipedia

• substitution effect — ➔ effect * * * substitution effect UK US noun [S] ECONOMICS, COMMERCE ► the effect of a change in the price of a product or service, which encourages customers to buy another product or use another service instead …   Financial and business terms

• substitution product — noun A substance obtained by substitution of so many equivalents for certain atoms or groups • • • Main Entry: ↑substitute …   Useful english dictionary

• Product rule — For Euler s chain rule relating partial derivatives of three independent variables, see Triple product rule. For the counting principle in combinatorics, see Rule of product. Topics in Calculus Fundamental theorem Limits of functions Continuity… …   Wikipedia

• Substitution reaction — In a substitution reaction, a functional group in a particular chemical compound is replaced by another group.[1][2] In organic chemistry, the electrophilic and nucleophilic substitution reactions are of prime importance. Organic substitution… …   Wikipedia

• Substitution principle (sustainability) — The substitution principle is focused on the substitution of a product, service or process to another that is more efficient or beneficial in some way while retaining the same functionality. The prominent substitution nowadays is replacing a… …   Wikipedia

• substitution — 1. In chemistry, the replacement of an atom or group in a compound by another atom or group ( e.g., s. of H by Cl in CH4 to give CH3Cl). 2. In psychoanalysis, an unconscious defense …   Medical dictionary

• Product cipher — In cryptography, a product cipher is a popular type of block cipher that works by executing in sequence a number of simple transformations such as substitution, permutation, and modular arithmetic. Product ciphers usually consist of iterations of …   Wikipedia

• Substitution-permutation network — In cryptography, an SP network, or substitution permutation network (SPN), is a series of linked mathematical operations used in block cipher algorithms such as AES.These networks consist of S boxes and P boxes that transform blocks of input bits …   Wikipedia