隨著行動通訊及網際網路快速發展，應用程式的出現改變了人們的工作方式及其他社會和經濟現象。然而於現階段應用程式商店發展中，Apple及Google之應用程式商店規模逐漸壯大，以致有濫用主導地位之疑慮存在，衍伸出應用程式商店是否透過控制主導地位以獲得不合理之利益，並使應用程式市場向有利於其的方向傾斜，亦透過訂定審查指南等規則強迫應用程式開發商須繳交一定之交易費用，以及是否存有搭售等其他競爭法爭議。
本論文從以上問題出發，聚焦於討論應用程式商店所衍生之不同競爭法問題，並回顧近年於美國及歐盟針對應用程式商店之值得參考之判決，藉由判決中法院之意見得出本文所彙整之競爭法問題於法院實務中仍難以構成，惟其競爭法問題對於開發商、消費者而言仍皆造成傷害。因此本文提出數種應用程式商店平台、法院及監管機關未來可採取的做法，包括利用分離原則以使平台失去現有的優勢以制衡其發展；法院可透過個別化禁制令有效解決單一公司之壟斷行為而不致同時影響其他公司；監管機關可利用互操作性縮小大型企業之獨占地位以及與競爭對手之差距；亦可使用網路中立性將平台列為公共承運人，使其須負擔網路中立性之責任，由監管機關直接監督；也試圖重新規劃應用程式商店平台之商業模式。此外，本文嘗試融入行為經濟學角度，認為行為經濟學可透過其經驗論給予新的執法對策。亦分析各國目前針對應用程式商店所草擬新法案或是修正案，以了解目前各國對於應用程式商店競爭法議題上的態度。最終對於未來企業如何因應及監管機關如何執法上提出建議。

With the development of telecommunication and the internet, the emergence of apps changes the way of working and other social and economic phenomena. However, at the current stage of the development of the app store, the scale of the app stores of Apple and Google now are so huge that raises concern about abusing their dominant position. If they obtain unreasonable profit by controlling the dominant position and tilting the app market in their favor, and setting guidelines to force app developers to pay transaction fees, and whether there are other competition law issues such as tying and others.
To answer the questions above, this thesis examines the different competitive law issues derived from app store and focuses on the important app store cases in the US, and the EU. From these cases, this study summarizes and analyses that issues of competition law are still difficult to fulfill in cases, but competition law issues still cause harm to both developers and consumers. Therefore, this thesis makes several suggestions that app store platforms, courts, and regulators can implement in the future: (1) using the principle of separation to make the platform lose its existing advantages to balance the development of app store; (2) the court can solve the monopoly problem of a single company by tailored injunctions; (3) regulator can use interoperability to narrow the gap of large companies and other competitors, and can also use net neutrality to make the platform become a common carrier, making it take the responsibility of net neutrality; (4) redesign the business model of the app store platform.
In addition, this study attempts to integrate the perspective of behavioral economics, trying to provide the new law enforcement policies by behavioral economics. It also analyses the new bills or amendments currently to understand the current attitudes of countries on the issue of competition law for app store. To conclude the research of this thesis, this study provides the direction for companies and regulators.

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