Abstract:
The purpose of this study was to create an appropriate forecasting model which covers
factors impacting the sales to distributors and recommend methods to manage internal and
external factors which impact sales. Analysis of the relationship of the internal and external
factors impacting the sales of electrical cables to distributors on a monthly basis covering a 10
year period (2014-2014) was also carried out. Multiple linear regression analysis was used to
analyze the data.From the research it was found that internal and external factors have an impact
on forecasting electrical cable sales to distributors. The price of crude oil (X1), Thai GDP growth
rate (X2) and time data DO (X3) have an impact and are leading factors in the forecasting of
electrical cable sales to distributors. The determined equation for forecasting sales is:
Ŷ = 62.619+2.678X1 +3.51 X2 +25.88X3
Recommendations from analysis of the factors as follows: A study on the trends in
price of crude oil should be carried out in order to plan accordingly in order to maintain stability
of the company, measure such as cost reduction or promotions to increase sales should be
implemented, should be hedged or guarantee the costs in order to avoid fluctuations and should
consider engaging in 3rd party logistics in order to avoid impacts of fluctuating crude oil prices.
A study should be carried out on the trend for GDP growth in Thailand, using government
channels or other related parties and increase in production in Quarter 4 may be needed in order
to prepare for Quarter 1 sales.