台灣醫院市場競爭之比較分析──以1995年與2000年為例

Taiwan hospitals' market competition change from 1995 to 2000

研究目的：1. 以過去學者依據病人來源法所定義出的市場範圍，作為劃分市場的準則，探討1995年到2000年台灣醫院的市場競爭變化。2.不同定義市場方式之影響初探。研究方法：本研究使用次級資料，採橫斷性研究，以描述性統計呈現市場競爭情形，利用「出院人次」作為賀芬達指標中市場佔有率的計算單位。結果與結論：以市場觀點而言，台灣醫療市場若處於高度競爭的地區，即使經過五年的變化，市場競爭度仍是居高不下，其競爭壓力依然存在；然而，若是低度或中度競爭的地區則較互有變化。以醫院的角度顯示，公立醫院相較於非公立醫院，所面臨的競爭日漸增高。此外，以地區市場方式來劃分市場，較趨於保守（不易判為競爭區），是以不同市場定義的方式將影響市場競爭強度的判別，進而可能影響市場競爭與其他因素之關係，故建議未來研究在採用市場定義方式應有所抉擇。

Object: (1) Use the principle which the past researchers based on patient origin to define market scope to divide market and discuss Taiwan hospitals' market competition change from 1995 to 2000. (2) The initial discussion of the effect of different definition of market. Method: This research use secondary material, belonging to cross-sectional study. Descriptive statistics was applied to present the market competition situation. The unit of market shares in Herfindahl Index is discharge patients. Result: By market viewpoint, Taiwan medical service market if is in the area which competes highly. Even if passes through five years change, the market competition still was stays at a high level; its competition pressure still exists. However, if low or moderate competition area then has the change mutually. By market viewpoint, the public hospital compares in the non-public hospital, faces the competition more day after day. In addition, divides the market by the local market way, tends to conservatively. Therefore, the different market definition way will affect the market competition intensity the distinction. Further it possibly affects the market competition and other factor relations. Therefore this research suggestion future researcher will be supposed to choose the market definition way carefully.