Max wrote, >I would say net interest paid (not personal interest received) > and rent belong too.
I'm not sure about rent as my concern is with surplus generated within an economic relationship involving wage labor (i.e. capitalism). The rental income in NIPA is for PERSONS (except for those who are part of the real estate industry) and a large part of it is imputed rental income that homeowners (pay themselves?) for living in their own houses. Some of it is payments for copyrights, patents, etc, but not too much I think. If you rent out your house to someone else this is unlikely to involve capitalist wage labor. You might earn income from ownership of capital (a house) but this isn't capitalist profit. Of course, I'm not entirely sure whether net interest payments should be included as profit from lending something scarce (money) need not be profit from capitalist activities. But I haven't quite figured this out yet. Eric .
