近年來，大部分關於數位內容及其產業的研究多著重於內容保護技術或法律面的探討，然而對於其商業模式甚少討論。基於此原因，本研究將分析在不同的市場結構下，何種定價策略對於網路中間商而言最有利。

　　本研究依網路中間商是否採取以時間為基礎的收費方式與市場結構為獨佔或寡佔分為四部分，分別討論之。研究結果發現：一、在獨佔的市場中，如果網路中間商只提供以下載單位為基礎及以時間為基礎的定價方式，則以下載單位為基礎的定價方式較有利；二、在獨佔的市場中，如果網路中間商提供固定費用（如月費或年費）及以下載單位為基礎的定價方式，則對網路中間商而言，提供固定費用的收費方式給具有需求彈性的顧客並提供以下載單位為基礎的收費方式給不具有需求彈性的顧客，這種定價策略可獲取最大利潤；三、在寡佔的市場中，無論網路中間商是否採取以時間為基礎的定價方式，只要兩家廠商採取不同的收費方式，對兩者而言均可獲利。

　Recently, most studies about digital content industry focus on the techniques of content protection or legislation review, while there are fewer studies about the business model of the industry. For this reason, we study various pricing issue about the industry and analyze conditions under which the various pricing schemes may prove optimal for the online servers.

　Our study is presented in four sections, corresponding to whether the server takes connect-time-based pricing into consideration or not, and to whether the market is monopoly or duopoly. We find that first, in monopoly market, if the server only offers a search-based and connect-time-based pricing, the search-based strategy is more profitable; second, in monopoly market, if the server offers subscription and search-based scheme, it is profitable to offer subscription scheme to consumers with elastic demand and offer search-based scheme to the other consumers; third, in duopoly market, no matter in any case, it is profitable if two servers use different pricing to each other.

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