“…Following previous studies, we add several firm-level control variables, including firm size, leverage, Tobin's Q, cash flow (CFO), the standard deviation of the CFO, net working capital, dividend, acquisitions, capital expenditure, research and development (R&D) expenses, property, plant, and equipment (PPENT), and the natural logarithm of the firm's age (Opler et al, 1999;Chang et al, 2014). We also control state-level demographic characteristics for the number of seniors present in the area, median house value, median income, education, and the natural logarithm of the population size (Ucar, 2016). Definitions for each variable are provided in the Appendix A.…”