Want the lowdown on European markets? In your inbox before the open, every day. Sign up here. Just when the market is looking for a positive catalyst to revive its rally, the European Central Bank’s Olli Rehn seems to think it’s a good move to float the idea of equity purchases as a means of stimulus. But a number of investors and strategists aren’t too thrilled and warn of the risk of artificially overvalued assets. In an interview with the Wall Street Journal last week, Rehn said that it was better for the ECB to overshoot than undershoot market expectations when it comes to new support measures, and didn’t rule ... (full story)