網路外部性與共享經濟

Network Externality and Sharing Economy

高鈺傑(Yu-Jie Gao)

指導教授 ： 吳健瑋

國立暨南國際大學/管理學院/經濟學系/碩士(2020年)

https://doi.org/10.6837/ncnu202000097

摘要

本研究旨在探討共享經濟與網路外部性之相互關係，透過模型的假設討論市場具有網路外部性的均衡，描繪網路外部性函數的可能形式及其經濟意涵，討論台灣共享單車的發展。在適當的網路外部性假設下，本研究得到廠商的均衡產量可能存在複數均衡的結果，並討論廠商數量、本質性需求、網路外部性起飛點及網路外部性的速度對於均衡點及轉折點的影響。
本研究運用以上的結論，用一個簡單的例子說明廠商數量、大眾交通環境及廠商投入的產量的改變如何改善City Bike目前的營運成果。在政策決定汰換City Bike為U-bike的當下，本研究結果指出，保留City Bike使City Bike及U-bike系統共存下，高雄共享單車的表現將會更好。最後，依據研究結果提出建議及未來研究方向。

關鍵字

共享經濟 ； 網路外部性 ； 共享單車

並列摘要

This study aims to investigate the relationship between Sharing economy and Network externality. Through the assumptions of the model, we discuss the equilibrium of the market with Network externality, describe the possible forms of the Network externality function and their economic implications, and discuss the development of bike sharing in Taiwan. Under the proper assumption of network externality, we can get the result that the manufacturer's output may have a plural equilibrium, and discuss the influence of the number of manufacturers, essential demands, network externality take-off point and network externality speed on the equilibrium point and tipping point.
Above these conclusions, we use a simple example to illustrate how the changes in the number of manufacturers, the mass transit environment, and the amount of output invested by manufacturers can improve City Bike's current operational results. When the policy decides to replace City Bike with U-bike, we believe the result will be better if retain City Bike and make City Bike and U-bike coexist. Finally, based on the research results, recommendations and future research directions.

並列關鍵字

Network Externality ； Sharing Economy ； Bike Sharing

參考文獻

一、英文部分

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Economides, N. (1996). “Network externalities, complementarities, and invitations to enter.” European Journal of Political Economy 12: 211-233.