A couple of years ago, when my eldest daughter was three, I overheard her proudly telling a friend she was getting a smartphone for her birthday. The way she talked about it reminded me of my ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Using the tally system to record your results is faster than writing out words or figures all the time. If you record your findings on a tally chart, the data is already collected into groups and you ...