2015-03-112024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/671715摘要：此計畫將利用StubHub平台上球票的銷售資料來分析網路市場的價格波動。過去的文獻發現網路市場仍然存在相當程度的價格波動即使商品是同質性的。除了可以用消費者存在著搜尋成本來解釋以外，另一個可能的解釋方向就是賣家的定價行為。不同的賣家對於市場的需求有著不同的預期，賣家同時也可以藉由即時的資訊更新來調整其訂價。此外，賣家間也同時存在著彼此競爭的關係。 此計畫將分為兩個子計畫來執行，第一個子計畫主要以靜態的模型來研究市場競爭和價格波動的關係。至今文獻在探討市場競爭對價格波動的影響有著分歧的見解，本計劃有別於過去文獻以航空市場來分析，由於球票市場中不存在著對不同消費者的價格歧視，因此價格波動主要來自於不同品質的票價和市場的競爭。假使可以控制著影響價格水準的眾多變因，市場競爭的效果便可以藉由不同區域上不同數量的賣家估計出來。 此外，第二個子計畫主要以動態模型去探討賣家於每期所獲得需求面之資訊如何去影響著市場的價格波動。Deneckere and Peck (2012) 利用一理論模型點出了賣家的價格調整主要來自其對需求面的更進一步了解。因此，我計畫以StubHub的球票資料來測試此模型並且藉由估計結果去了解市場的價格波動是如何隨著比賽靠近而變化。<br> Abstract: This project uses the sports ticket data on StubHub to investigate the price dispersion in the online market. Previous literature has found that there exists the substantial price dispersion even though the product is homogeneous. Besides the positive search cost for consumers, the other possible explanation is related to how sellers post their prices. Sellers have different perspectives on the uncertain demand, and they can also adjust their prices based on the updated information over time. In addition, sellers have the price competition with other sellers in the same area. The project is divided into two sub-projects. In the first sub-project, I focus on the static model to understand the relationship between competition and price dispersion. So far the literature has different results about the effect of competition on price dispersion. Unlike the price dispersion in the airline market, there is no price discrimination for different types of consumers in the sports ticket market. Therefore, the price dispersion mainly comes from the qualities of tickets and the competition in different areas. The number of sellers in different areas can directly affect the competition, so the effect can be estimated after we control some other characteristics which can affect the price level. In addition, in the second sub-project, I use a dynamic model to study how information updating by sellers can affect the price dispersion over time. Besides the competition, Deneckere and Peck (2012) use a theoretical model to point out that the price adjustment by sellers is based on the change of sellers` perspectives on the demand over time. Therefore, I plan to use the listing and transaction prices on StubHub to test the price posting theory and to see how the price dispersion change over time in the market.價格波動Price Dispersion