We examine a two-sector real business cycle (RBC) model with sector-specific externalities in which household utility exhibits no income effect on the demand for leisure. Unlike in the one-sector counterpart, indeterminacy can result with sufficiently high returns-to-scale in the investment...

We show that in a two-sector real business cycle model wtih sufficiently strong investment externalities, a regressive tax policy can stabilize the economy against fluctuations driven by agents' animal spirits. By contrast, this economy with a flat or progressive tax scheme (such as that in the...