I think you can wait until around early March. As the 1st quarter, 2018, starts to draw to a close, this is when we will learn if the tax cuts are biting in in terms of productivity in the USA. I'm thinking lots of CEOs and executives are going to have some difficulty deciding what to do with all the extra money they have due to the tax savings, and so obvious things like stock buy backs, or investing in automation will occur. But some of them will do stupid things with it, or just leave it in a money market as the dollar drops in value. So there will be some company earning reports that will come out bad. Further, employees, if they don't ask for a raise, will make the same they make now. You MUST ask for a raise. Do it!!!! Next, you have sales people that may not be as motivated because they imagine the company is now DRIPPING in money. Thus, productivity and sales may actually drop. We shall see.