The Swedish market for passenger railway services has been open to competition since the year 2010. Although minor entries have been made since this date, the incumbent SJ only faced substantial competition on the tracks when MTR entered the Stockholm-Gothenburg line in March 2015. Using unique Swedish ticket price data from operators' websites, this paper investigates what effects this entry has had on market prices.

The results show that the incumbent's prices decreased by 12.6 percent on average between March 2015 and June 2016. The price level of the competitor is well below the average price that was offered in the pre-entry period. Further, the largest price reduction, in percentage terms, was found on tickets booked 13 days before departure date. Finally, the observed price decrease in the paper is most likely at a short-run equilibrium, or an ongoing process, implying that prices might adjust further in the long-run.

自2010年以来，瑞典的客运铁路服务市场一直开放竞争。尽管自那时以来进入的竞争不多，但现任SJ只是在2015年3月MTR进入斯德哥尔摩－哥德堡线时才在赛道上面临激烈竞争。来自运营商网站的独特的瑞典机票价格数据，本文调查了此条目对市场价格的影响。

结果显示，在位者的价格在2015年3月至2016年6月之间平均下降了12.6％。竞争对手的价格水平远低于进入前期的平均价格。此外，在出发日期前13天预订的机票中，以百分比表示的降价幅度最大。最后，本文中观察到的价格下跌很可能是在短期​​均衡或正在进行的过程中出现的，这意味着从长期来看，价格可能会进一步调整。