小弟现在正写毕业论文，导师建议我写consumption correlation puzzle，想请教各位大侠们有没有这方面的资料分享一下。导师给我的邮件是这么说的：

“If you want to be safe, and wish to get away from the exchange rates, I
have a suggestion: consumption correlation puzzle, which indicates that
correlation between the consumption series of countries is lower than the
correlation between the output series, and our models tell us a different
story. Read it in Obsfeldt-Rogoff”

原来没有看过这方面的类容，所以很迷惑，希望各位前辈不吝赐教。谢谢。