‘Mixed’ is a word that pops up often in financial research reports these days. The measures that give us hints about which way the economy and markets are headed‹everything from the number of people out of work to how difficult it is for companies to fund themselves are pointing in every which direction. As a new Bank of America-Merrill Lynch report puts it: ‘The [stock market] indicators are fairly evenly divided between positive and negative readings.’ That’s not too helpful.