Is Adsense better than Amazon affiliate for a popular finance niche blog ?

[blogger]

My friend has a finance blog and he is monetizing with amazon affiliate so far. He was thinking to now try Adsense instead of amazon affiliate. Should he go for it in your opinion ?

[seoguy]

Both can give good results. You have to try both for sometime and compare the results. If the traffic is from countries like USA, it will give higher returns with affiliate marketing.