The present paper provides first empirical evidence on the relationship between market size and the number of firms in the healthcare industry for a transition economy. We estimate market-size thresholds required to support different numbers of suppliers (firms) for three occupations in the healthcare industry in a large number of distinct geographic markets in Slovakia, taking into account the spatial interaction between local markets. The empirical analysis is carried out for three time periods (1995, 2001 and 2010) which characterise different stages of the transition process. Our results suggest that the relationship between market size and the number of firms differs both across industries and across periods. In particular, we find that pharmacies, as the only completely liberalised market in our dataset, experience the largest change in competitive behaviour during the transition process. Furthermore, we find evidence for correlation in entry decisions across administrative borders, suggesting that future market analysis should aim to capture these regional effects.

Measuring the progress of the Member States of the European Union in liberalising their electricity markets has received considerable importance since the Electricity Directive 96/92/EC is introduced. In this thesis, first, a model based on the indicators-approach proposed by OXERA is developed to measure the degree of liberalisation in electricity markets. Then, the degree of electricity market liberalisation in the European Union-15, the New Entrants and Candidate Countries is measured in the years 1999, 2000 and 2001. Measurement of electricity market liberalisation in the European Union-15 and the New Entrants and Candidate Countries brings about several important findings. It is seen that there is a progress in the degree of electricity market liberalisation in the European Union-15 between 1999 and 2001. Similarly, the New Entrants and Candidate Countries are, also, found to increase the degree of liberalisation in their national electricity markets between 1999 and 2001 and to converge to the European Union&#039 / s level of electricity market liberalisation. Furthermore, comparison of the state of liberalisation in electricity generation and supply markets in the European Union -15 Member States and the New Entrants and Candidate Countries suggests that their electricity generation market is not as liberalised as their supply market.

The present paper provides first empirical evidence on the relationship between market size and the number of firms in the healthcare industry for a transition economy. We estimate market-size thresholds required to support different numbers of suppliers (firms) for three occupations in the healthcare industry in a large number of distinct geographic markets in Slovakia, taking into account the spatial interaction between local markets. The empirical analysis is carried out for three time periods (1995, 2001 and 2010) which characterise different stages of the transition process. Our results suggest that the relationship between market size and the number of firms differs both across industries and across periods. In particular, we find that pharmacies, as the only completely liberalised market in our dataset, experience the largest change in competitive behaviour during the transition process. Furthermore, we find evidence for correlation in entry decisions across administrative borders, suggesting that future market analysis should aim to capture these regional effects.

Red-Hat Linux之CEO，Robert Yang曾對微軟行為作如此論述：「微軟很壞，但壞的很成功！」本文內容可分為三部分。首先在於釐清微軟成功之原因，針對形成微軟獨佔個人電腦作業系統之原因，做一有系統之經濟觀點分析：將軟體產業特殊之競爭策略層面考量與相關網路外部性理論經濟模型推論、驗證過程透過本文架構重新整合，發展出不同於一般管理文獻論述之方式以建立微軟獨佔地位之經濟理論基礎。第二部份針對微軟破壞競爭規範等違法行為作研究，主要針對微軟1998年對網景之反托拉斯此案，以美國司法部公布之事實認定書與休曼法為基礎，加以延申並做詳盡之探討。第三部分則針對微軟被宣判違反反托拉斯法後，政府在網際網路時代下執行反托拉斯法以回復競爭規範之角色、補救原則、措施做一探討並與AT＆T案例比較；最後並提出兩種分割方式經濟模型分析與最適分割條件之政策性建議。 / The CEO of Red-Hat Linux, Robert Yang, has made such comments on the behavior of Microsoft that:” Microsoft is very bad, but very successful.” This thesis mainly focuses on three parts. The first part is to clarify the reasons why Microsoft is so successful and analyze its monopolistic position on personal computer operating system market in light of a systematic、economic method combining strategic competitive characteristics of software industry with economic theories of network externalities, making its foundations of monopoly and distinguish from general managerial arguments through the framework of this thesis. The second part primarily focuses on the antitrust case of Microsoft’s behavior against Netscape proposed by DOJ in 1998. Basing on the DOJ’s findings of fact and the antitrust law of Sherman act, we made explorative research on the case. The third part is to explore the role、principles and methods of antitrust remedy enforcements by government under the era of networks and Internet and compare with the AT&T case in 1982. Finally, we compare between two different ways that divide Microsoft into two companies in light of economic analysis and propose policy recommendation about condition that will optimize upon exploiting such remedy method.

數位時代孕育大數據技術的發展並帶動產業的創新，使用者數據的運用也日益活躍於商業領域，並分別為消費者與事業帶來便利的生活與競爭優勢。然而蒐集、處理、運用等數據價值鏈活動對於市場競爭造成相當的影響，也成為事業為反競爭行為的誘因，而引起競爭法的關注，多國競爭執法機關亦已陸續展開調查或進行相關研究。由於使用者數據涉及個人資訊隱私，更因其係產業創新的動力之一，從而競爭法管制的合適性與必要性一直為爭議性議題，後續延伸出對於現有競爭法架構的相容性疑義。本文透過文獻與案例分析，從使用者數據的特色出發，探討使用者數據於競爭法框架下之爭議，包含與隱私法規的競合問題及衝擊現行制度之因應方式。基於競爭法適度管制的觀點，提出可能評估市場力量的方式與使用者數據可能形成的限制競爭或不公平競爭之風險類型。冀望對於我國公平交易法就此議題之剖析與因應有所助益，迎接數據經濟的浪潮。 / Big data analytics technology evolves rapidly and enhances the pace of the innovation of industries in the digital era. Utilizing user data, which is a sort of valuable assets, becomes more popular in business. The new technology brings consumers fitted products and convenience and creates competitive advantages to firms. However, collecting, processing and analyzing large sets of user data not only benefit the entities in the market but also impact market competition. Competition agencies around the world have engaged in related investigations and research on data and competition. The mainly concerns are whether the amount of user data may build a barrier to entry, and whether firms which control user data in a massive amount or essential to competition may have incentives to abuse their market power to foreclose marker. Moreover, because user data is one factor of fostering innovation and has a strong correlation with privacy, the suitability and the necessity of competition law to regulate data issue is still controversial. If competition law intervenes, we should further consider how to adapt it to the present regulation. By reviewing academic literature and practical cases, this thesis begins with the introduction of characteristics of user data, followed by the analysis of the controversy concerning user data under the framework of competition law, including the trade-off between it and privacy laws and possible adjustment to the present framework. This paper also discusses the way to assess market power and specific types of anticompetitive and unfair competition behaviors. Finally, this thesis concludes with a short remark. Hopefully it can provide some references for further discussion on this issue under the Fair Trade Act in Taiwan.