Summary: | 碩士 === 國立臺灣大學 === 國際企業學系研究所 === 86 === In practice, it is always a myth that getting correct information of marke
t share. Although there are a lot of strategy provided to create competitive a
dvantage or core competence, managers still can*t plan the right strategy. The
reasons are that many strategies decided are based on the company*s market po
sition: market share. However, most managers obtain the information by guessin
g. Therefore, it motivates us to do this research, and think of the question:
"How to update structural market share permaBasically, our research is built b
y bayesian approach and hypothesize that managers only have one-period informa
tion of market share and incomplete current data. The model is divided into si
x stages, and the first stage is divided into six steps. In the first stage, w
e update current market-share data and from the second to the sixth stage, we
simulate data to converge the estimates in bayesian structure. Finally, use th
e concept of efficiency to prove that bayesian approach is better than na*ve o
ne. In shoOur contribution of research are in the following aspects.1. Manage
the company*s market position dynamically in short term, instead of the tradi
tional concept of "ABC management". 2. Make a marriage between high benefit
and low cost by computer language and software package, because you can get th
ese information in a few minutes. 3. Complete the preceding literature about
market structure and make the strategy management more practical.4. Dimension
is free, and it can be applied to some short-term issue, such as marketing of
election.
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