Saturday, 4 May 2013

ADONGO'S CENTRAL COST AND PRICING THEORY







ABSTRACT
Central Cost And Pricing Analysis
 William Ayine Adongo
University For Development Studies
Department Of Statistics(Option: Actuarial Science)
ID.FAS/0912/06
Email:ayinewilliam@yahoo.com

This paper presents a study of central prediction theory in economics. The study is based upon  using the costs relationships and sales relationships when one variable(output or price) may assumed to influence several total costs and several sales respectively.


1.0 Introduction
This paper presents two main topic. That are the central cost-volume relationships and the central price-volume relationships. These two main topics are to be briefly explained fundamentally.


1.1 Central Cost Model
This is a technique I have developed for the estimation of mean total costs c1m, c2m ,.., cj, …, cr provided the mean output q0m of mean cost c1m is known. The model is:

C1m=α+β0qom
C2m=α+β0q0m1c1m
………………………………………………………
Cjm=α+β0q0m1c1m+…+βj-1c(j-1)m+…+βr-1c(r-1)m
………………………………………………………
Crm=α+β0q0m1c1m+…….+βjcjm+………+βrcrm

The table below shows the cost-volume relationships of multi-production firm of tatal cots 1, 2,and3.

Output of c1 (q0)

5000
1000
2000
3000
5000
Total cost (c1)

115
151
205
212
328
Total cost (c2)

105
150
190
205
300
Total cost (c3)

151
150
204
208
308

We can estimate c1m, c2m, and c3m if q0m is given. To estimate, we have:

β0=0.0316

 β1=- 0.0604

 β2=0.0747
 
 α =101.1

NOTE: the parameters α ,and β0 , and β1,  β2 are denoted as central fixed cost, central-coefficients of mean-output q0m ,and total costs c2m, c3m espectively.

Hence, the model is given as:

C1m=101.1+0.0316q0m
C2m=101.1+0.0316q0m-0.0604c1m
C3m=101.1+0.0316q0m-0.0604c1m+0.0747c2m

This is telling us that if the mean output q0m of mean-total cost c1m is 3200, then:

C1m=202.2

C2m=190.0

C3m=204.2


1.2 Central Pricing Model
 This is also a technique I have developed for the estimation of the mean-sales s1m, s2m, …, sjm, …, srm ,provided the price p0m of mean sales s1m is known. The model is:

S1m=α - β0p0m
S2m =α - β0p0m - β1s1m
……………………………………………………………
Sjm= α - β0p0m - β1s1m- … - β(j-1)s(j-1)m - … - β(r-1)s(r-1)m
……………………………………………………………
Srm= α - β0p0m  -  β1s1m-……..-βjsjm-……..-βrsrm

In this model, the elasticity of s1m is estimated as:

E=β0p0m/s1m




REFERENCE
*Galton, Francis.(1886).  'Regression Towards Mediocrity in Hereditary Stature'. Volume 15.