Warren Mosler on the Economy

Main provisions Expiring:
Housing credits- low income credits, deductible mortgage premiums
Energy Efficient Residential construction/appliances
Energy Efficient Commercial buildings/construction
Renewable Energy construction/production credits- notably wind

These may all have caused Q4 jumps in construction etc. Quarterly/monthly data for energy efficient construction and renewable production is not available for comparison, figures are usually collected annually.

Other things that stick out:
Alternative/Renewable fuels credit- Will probably see decrease in production
Research and experimentation credit