What does 2015 hold in store for investors?

If you’re an investor, you probably had a pretty good year in 2014. But what’s in store for 2015?

It’s essentially impossible to make precise predictions about the performance of the financial markets — but it is possible to identify those economic conditions and market forces that may help shape outcomes in the investment world for 2015. By paying close attention to these conditions and forces, you can gain some valuable insights as to what investment moves might make sense for you.

Here are a few of these moves:

Consider adding stocks. With stock prices having climbed higher and...