externalities appear along the lifecycle. In a simple model, we show that it may be efficient to subsidize innovative firms in their … early stages or to protect mature firms from competition to appropriate these externalities. However, non …-benevolent politicians may not choose efficient policies. Real-world examples indicate that politicians tend to concentrate on externalities …

We propose a model of intergenerational transmission of education wherein children belong to either highly educated or … interactions with other low-educated students (i.e., homophily), which reduces the education effort of their parents and, thus … kids from different education backgrounds can be effective in reducing the education gap between them. …