As unemployment trends downward, attention has turned to wage stagnation this summer as analyst wonder what will happen if we get back to full employment but people don’t feel like they have money to spend. According to a new Gallup poll 45% of Americans are spending more now than they were a year ago, and millennials are more likely than other groups to have increased their spending. That’s good news for business, but maybe not so great for the millennials themselves. Millennials discretionary spending is up, which could be a problem “Millennials increased spending on discretionary items bucks the overall…