Abstract:
This research is a study of the pattern of forecasting using the Markov Chain
model for data of Labor Demand in Elementary Occupation in Thailand labor market.
It conducts an analysis of the data's characteristics by utilizing past Labor Demand in
Elementary Occupation to construct the most suitable forecasting model to
efficiently plan future labor aligned with market demand. Data is gathered from the
Department of Employment, Ministry of Labor, regarding the labor demand and.
registered applicants categorized by occupation in Thailand from January 2016 to
December 2023. Labor shortage data has rapidly changed since 2020 due to the
COVID-19 pandemic, causing labor shortages across industries. The researchers
divided the data into 2 sets for comparison, with Set 1 consisting of 96 months and
Set 2 consisting of 48 months. Each dataset includes 5 Markov chain models for
forecasting in labor demand 3 periods (from 2021 to 2023) and sets the class interval
as 10, 15, 20, 25, and 30. Upon examination of 2dataset, it was found that the class
interval optimal for both datasets was 30 intervals. Set 1 has a mean absolute
percentage error of 17.84%, while Set 2 has a mean absolute percentage error of
9.44%