Abstract
A new planning method is proposed to invest manufacturing equipments based on asset management in order to cope with fluctuations in demand for manufacturing systems, in this research. Some portfolios are set to consider candidates of the equipment investment. Returns and risks of the individual portfolios are required to select the best portfolio in the invest planning based on the asset management. The returns and the risks of the portfolios are obtained by using the returns and the risks of the investment of the individual manufacturing equipment. The returns and risks of the investment of the individual manufacturing equipment are calculated based on the averages and the variances of loads of manufacturing equipments under assumptions that candidate production plans and their probabilities are obtained.
