TY - JOUR T1 - Two Sided Markets: The Case of The Waterbed Effect in OECD Mobile Telecommunications Markets TT - İki Taraflı Piyasalar: OECD Mobil Telekomünikasyon Piyasaları’nda Su Yatağı Etkisi Örneği AU - Kar, Mikail PY - 2019 DA - November DO - 10.29249/selcuksbmyd.531070 JF - Selçuk Üniversitesi Sosyal Bilimler Meslek Yüksekokulu Dergisi PB - Selcuk University WT - DergiPark SN - 2564-7458 SP - 383 EP - 396 VL - 22 IS - 2 LA - en AB - Efforts to develop appropriate policies and accurate strategiesthrough the most accurate analyzes highlight the examination of two-sidedmarkets, which differ significantly from one-sided markets. In this study,mobile telecommunications market which has a special place in two-sided marketanalysis will be studied. In mobile telecommunications market, it is suggestedthat a reduction in mobile interconnection rates for the interconnectionservice will show the waterbed effect, resulting in an increase in mobilecommunication prices that the end user faces in the market. In this context, anempirical analysis was made by Common Correlated Effects Mean Group (CCEMG)estimator using the 41 quarter period data of 21 OECD countries between 2005and 2015, and the effect of mobile interconnection rates, income and quantitywere estimated in determining the mobile communication prices. According to theresults, the waterbed effect in mobile telecommunications markets could not bedetermined in the period analyzed for the related country group and mobileinterconnection rates acted as a cost factor and changed the prices in the samedirection. The coefficient of incomevariable was positive and the expectation that the increase in income wouldincrease the price was met. Theexplanatory variable coefficients of the number of subscribers and the penetrationrate representing the quantity were negative and they were evaluated to behavein accordance with economic expectations and two-sided market characteristics. KW - Two-Sided Markets KW - Mobile Telecommunications Market KW - Waterbed Effect KW - Interconnection Rates KW - Common Correlated Effects Mean Group Estimator N2 - En doğru analizler yapılarak uygun politikalar ve isabetlistratejiler geliştirme çabaları tek yanlı piyasalardan önemli ölçüdefarklılaşan iki yanlı piyasaların incelenmesini ön plana çıkarmaktadır. Buçalışmada iki yanlı piyasa analizleri içinde özel bir yere sahip olan mobiltelekomünikasyon piyasaları ele alınmaktadır. Mobil telekomünikasyonpiyasalarında arabağlantı hizmeti karşılığında alınan mobil arabağlantıücretlerinde yapılacak merkezi bir indirimin “su yatağı etkisi” göstererek sonkullanıcının piyasada karşı karşıya olduğu mobil iletişim fiyatlarınınyükselmesine neden olabileceği öne sürülmektedir.. Bu kapsamda 21 OECD ülkesineait 2005-2015 yılları arasındaki 41 çeyrek dönemlik veriler kullanılarak Ortakİlişkili Etkiler Ortalama Grup (CCEMG) yöntemi ile ampirik analiz yapılmış vemobil iletişim fiyatının belirlenmesinde mobil arabağlantı ücretleri, gelir vemiktarın etkisi tahmin edilmiştir. Sonuçlara göre ilgili ülke gurubu içinanaliz edilen dönemde mobil telekomünikasyon piyasalarında su yatağı etkisitespit edilememiş ve mobil arabağlantı ücretlerinin bir maliyet unsuru olarakhareket ederek fiyatları aynı yönlü olarak değiştirdiği ortaya konmuştur. Gelirdeğişkeninin katsayısı pozitif çıkmış ve gelirdeki artışın fiyatı artıracağıbeklentisi karşılanmıştır. 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UR - https://doi.org/10.29249/selcuksbmyd.531070 L1 - https://dergipark.org.tr/en/download/article-file/834156 ER -