Prof. Greg Mankiw, writing in the Sept. 11 New York Times business section (p. 5), finally gets it:

“Yet it would be overly optimistic to think that any single public policy, by itself, could lead to the kind of robust investment spending seen in previous recoveries. Myriad government actions influence the expected future profitability of capital. These include not only policies concerning taxation but also those concerning trade and regulation.

For example, passing the free trade agreement with South Korea, which has languished in Congress more than four years after first being negotiated, would be a step in the right direction. So would reining in the National Labor Relations Board; its decision to block Boeing from opening a nonunion plant in South Carolina may have been hailed by organized labor, but it surely did not hearten investors.”

So would clarifying the 600+ regulations required by ObamaCare and the Dodd-Frank financial reregulation bill.