Ecofi call of professional economists and finance to understand how economic and financial crisis is experienced daily in the field. Today, we find chronicled Damien Marietta, manager of equity portfolio in a large French investment bank. With a question: Can I buy shares now? And if so, under what conditions? "There is a fortnight - in times of balance-one would have thought that the shares were cheap. But the worsening global economic situation is accelerating. The Chinese wall cracks. Germany suffered a lot and its industrial fabric seems very close to overheating. The United States experienced its worst crisis since at least 30 years. In short, the news is bad, trust is at its lowest. Everyone is now aware that we live in an exceptional