All other things being equal, which of the following policy changes is most likely to result in a rightward shift of an economy's long-run aggregate supply (LRASLRASLRAS) curve?
A temporary reduction in import tariffs on raw materials, lowering short-run production costs for manufacturing firms.
An increase in the statutory retirement age that permanently expands the size of the active labour force.
A reduction in the central bank's policy interest rate designed to stimulate household consumption.
An increase in the level of out-of-work benefits to support low-income households during a recession.
