cobb douglas explication


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PDF The Cobb-Douglas production function revisited

Abstract Charles Cobb and Paul Douglas in 1928 used data from the US manufactur-ing sector for 1899-1922 to introduce what is known today as the Cobb-Douglas production function that has been widely used in economic theory for decades

PDF The Cobb-Douglas Production Function

Since the publication of the article in 1928 the term Cobb Douglas production function has been used to refer to nearly any simple multiplicative production function The original production function contained only two inputs capital (K) and labor (L)

PDF The Cobb–Douglas Production Function

In general a production function is a specification of how the quantity of output behaves as a func-tion of the inputs used in production This concept can be applied at the level of individual firms industries or entire economies Since we’re doing macroeconomics we will be considering an ag-gregate production function applying at the economy-

PDF The Introduction of the Cobb Douglas Regression and its

The first Cobb-Douglas regression was estimated in 1927 using aggregate time series data from the US manufacturing sector on labor capital and physical output with the goal of understanding the relationship between the level of output and the quantities

PDF This PDF is a selection from a published volume from the

Publication Date: 1967 Chapter Title: Comments on the Cobb-Douglas Production Function Chapter Author(s): Paul H Douglas Chapter URL: http://www nber org/chapters/c1474 Chapter pages in book: (p 15 - 22)

  • What is a Cobb Douglas production function?

    Since the publication of the article in 1928, the term Cobb Douglas production function has been used to refer to nearly any simple multiplicative production function. The original production function contained only two inputs, capital (K) and labor (L).

  • Is a Cobb Douglas type of function homogeneous?

    The Cobb Douglas type of function is homogeneous, and its corresponding dual cost function exists. It is possible to derive the specific cost function in terms of output for a Cobb!Douglas type of production function. Assume the production function

  • What is the Cobb-Douglas aggregate production function?

    Notably, the Cobb-Douglas aggregate production function is still being used to describe data coming from di erent elds of study driven by growth in production (see, for example, Prajneshu ).

  • How well do Cobb-Douglas production functions fit to a data set?

    We employ the R programming language to fit the formulas for the parameters of the Cobb-Douglas production function generated by the authors recently via the bi-Hamiltonian approach to the same data set utilized by Cobb and Douglas. We conclude that the formulas for the output elasticities and total factor productivitiy fit to the data quite well.

1 Introduction

In general, a production function is a specification of how the quantity of output behaves as a func-tion of the inputs used in production. This concept can be applied at the level of individual firms, industries, or entire economies. Since we’re doing macroeconomics we will be considering an ag-gregate production function, applying at the economy-

D AK N1 0 1 <

Here Y represents aggregate output, K the capital input, and N the labor input (capital and labor being the two “factors of production” in this function). The A term represents Total Factor Produc-tivity (TFP for short); you can think of this as a “quality” factor—as opposed to K and N which are just quantitative. The value of A reflects the state

3 Cross partials

A further point relevant for macroeconomic analysis: what (if anything) happens to the marginal product of labor when the capital input is increased? And conversely, what happens to the MPK when N increases? In mathematical terms, we’re talking about the so-called “cross-partial” deriva-tives, dMPN dK and dMPK d N. = = dMPN D 1 dK . users.wfu.edu

  • Comment interprétez-vous la fonction de production de Cobb Douglas ?

    A = productivité totale des facteurs . ? et ? sont les élasticités de production du capital et du travail, respectivement. Ces valeurs sont des constantes déterminées par la technologie disponible.
  • Comment reconnaître une fonction Cobb-Douglas ?

    Les facteurs alpha (a) et bêta (b) de la fonction de production Cobb-Douglas peuvent être utilisés pour prédire le résultat des rendements d'échelle : si a + b = 1, il y a des rendements d'échelle constants . Si a + b > 1, il y a des rendements d'échelle croissants . Si a + b < 1, il y a un rendement d'échelle décroissant .
  • La fonction de Cobb-Douglas correspond au cas particulier d'une fonction à élasticité constante, communément appelée fonction de production CES (pour Constant Elasticity of Substitution), quand l'élasticité tend vers 1. Pour le démontrer, une façon est d'utiliser la règle de l'Hôpital. tend vers zéro.
  • Le modèle Cobb-Douglas était basé sur l'hypothèse de rendements d'échelle constants , ce qui implique que dans la décision de production, chaque fois que les intrants utilisés pour produire une production donnée de biens sont doublés, la production totale doublera automatiquement.
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What is Cobb Douglas function?

  • The Cobb- Douglas function is a function or equation involving two or more variables, in which one variable is called a dependent variable and the other is called an independent variable [5,6].
    . Cobb-Douglas production function with multiplicative error term [18] is formulated by [19]:

What are some of the best books on Cobb-Douglas production functions?

  • Journal of Statistical Planning and Inference(1978) 153-163 [5] E.
    . Khater, A Cobb – Douglas Function Based Index for Human Development in Egypt.
    . International Journal Contemporer Math Science(2012) 591-598 [6] Gabriel Eduard Vîlcu, A geometric perspective on the generalized Cobb–Douglas production functions.

What is the estimation method used in the Cobb-Douglas production function?

  • The estimation method used is the least square estimation with the settlement using Newton Raphson iteration.
    . The Cobb-Douglas production function is applied to five selected manufacturing industries in West Sumatra.

How did Cobb and Douglas estimate the value of K?

  • Cobb and Douglas estimated the value of k in the hypothesized relationship P = bLkC1-k by using Douglas’s “laboriously compiled” data to fit the linear regression Log(P/C) = b + kLog(L/C) by ordinary least squares.










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The Introduction of the Cobb Douglas Regression and its econ

The Introduction of the Cobb Douglas Regression and its econ

The Diffusion of the Cobb–Douglas Regression (Part II) - Progress

The Diffusion of the Cobb–Douglas Regression (Part II) - Progress

Return to scale for Cobb-Douglas production function - YouTube

Return to scale for Cobb-Douglas production function - YouTube

Fonction de Production Cobb-douglas

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