Billionaire Tax Goes National

Local, experimental tax measures (here: California’s proposed billionaire levy) can serve as launchpads for national proposals; when high‑profile federal politicians (e.g., Bernie Sanders, Ro Khanna) adopt and scale those ideas, the political and capital responses (asset flight, corporate relocations) can reshape where firms decide to invest and how states compete for industry. Framing a patchwork of state experiments as the seed for a federal 'mega tax' highlights policy spillovers from subnational lawmaking to national markets. — If state‑level wealth taxes scale to national legislation, they could trigger rapid capital reallocation and become a central economic and electoral issue about where investment locates and who bears tax burdens.