Later, research by Karlsson, Loewenstein & Seppi (2009) determined that people in Scandinavia looked up the value of their investments 50% to 80% less often during bad markets.
时候，Karlsson， Loewenstein & Seppi (2009)的研究表明，在斯堪的纳维亚，市场条件不好时，人们查看自己投资当前价值的频率比起平时少50%到80%。