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THEORY OF Production. PRODUCTION THEORY. Labour + capital = Output. THEORY OF PRODUCTION EXPLAIN A INPUT-OUTPUT RELATIONSHIP, A FIRM SO AS TO MINIMIZE COST OF PRODUCTION. Isoquants .
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PRODUCTION THEORY Labour + capital = Output THEORY OF PRODUCTION EXPLAIN A INPUT-OUTPUT RELATIONSHIP, A FIRM SO AS TO MINIMIZE COST OF PRODUCTION.
Isoquants • Similar to IC curve, Equal-product curve or isoquants represents all those input combinations which are capable of producing the same level of output.
Isoquants continue…. Various factors combination Isoquants
Average physical product (APP) • APP = TPP / amount of input
Marginal physical product (MPP) • the additional output that results from the use of an additional unit of a variable input, holding other inputs constant • measured as the ratio of the change in output (TPP) to the change in the quantity of labor (or other input) used
Computation of MPP and APP • Note that the MPP is positive when an increase in labor results in an increase in output; a negative MPP occurs when output falls when additional labor is used.
Shape of MPP curve • MPP rises when TPP increases at an increasing rate, and declines when TPP increases at a decreasing rate. • MPP is negative if TPP declines when labor use rises
Relationship of APP and MPP • APP rises when MPP > APP • APP falls when MPP < APP • APP is maximized when MPP = APP
Production function • The functional relationship between physical inputs and physical outputs of a firm is known as production function. Algebraically production function can be written as q= f(a,b,c,d……..) • Where q stands for quantity of output and a,b,c,d stand for quantity of factors of production. f denotes for unspecific relationship between inputs and outputs.
Production function ..continue • In economics we are interested in two types of production functions:- • (i) Law of variable factor proportion (law of diminishing returns) • (ii) Return to scale
Forms of production functions • Linear homogenous production function It implies that if inputs increase in same proportion outputs increase in same proportion, it is known as HPF of first degree. • Cobb-Douglas production function.