七股潟湖周邊地區以鹽山、膠筏業、小吃業及餐廳等產業為主軸的生態旅遊模式，形成生態
旅遊的產業鏈。本研究透過觀光乘數的計算，分析七股地區生態旅遊所產生的經濟影響。分析結
果顯示，七股潟湖地區生態旅遊的遊客支出，所產生的直接影響約為新台幣4 億7 仟3 佰萬元，
且經乘數運算而獲得所得乘數為1.58，亦即遊客每額外多一元的消費，大約對當地居民產生1.58
元的收入。較高的值也表示生態旅遊對當地的社區經濟有明顯的助益。另外，相關觀光產業對間
接影響的貢獻以餐廳業佔一半最大。
在計算觀光乘數時，經驗研究的操作實有賴充足的社會調查資料的輔助作為必要條件，因此
Adhoc 模型在國內村里層次的應用有其困難，在縣市的空間層次操作較可行。

The Cigu area, which is a lagoon area, rubber raft industry, the snack industry, restaurant
industry and other eco-tourism activities have gradually attracted more tourists and encouraged the
development of local economy. This research penetrates a multiplier model, analyzes the economic
impact which the eco-tourism of Cigu area produces. The analysis result showed that, the economic
impact of the eco-tourism, contain two parts: the direct effect and indirect effect. The direct effect on
the eco-tourism industry is that total tourist expenditure is 473 million NT dollars. Income
multiplier is 1.58, that means each tourist consumes extra one dollar, probably produce 1.58 dollars
to the local residents. The large multiplier also means that the eco-tourism industries benefit local
economy significantly. In addition, sea-food restaurant industry contributes most to the indirect
effect.
Relating to the calculation of tourism multiplier, sufficient secondary social-economic survey
data is a necessary condition. Thus, the application of Ad hoc model in Taiwan is more feasible in
county scale than in community scale.