A repeat performance in today’s Philly Fed data would deepen concern that the expected second-quarter rebound for the US economy is on shaky ground. But economists are projecting a firmer reading. Briefing.com’s consensus forecast sees the regional benchmark ticking back into positive territory in May after sliding just below zero in the previous month. But if the forecast is overly optimistic, as it was with the New York numbers earlier this week, the Q2 rebound narrative will suffer another setback.