“…Previous studies have investigated the determinants of hospital profitability at the (1) organizational (e.g., teaching status, hospital size, ownership, system status), (2) managerial (e.g., age of plant, debt utilization, service index, labor intensity), (3) patient (e.g., Medicaid mix, Medicare mix, uncompensated care mix), and (4) market levels (e.g., physician density, patient income, hospital concentration) [1][2][3][4][5][6][7][8][9]13,14,[16][17][18][19][20][21]. Some studies focus on a few individual relevant factors such as bed size, ownership, or system affiliation [1][2][3][4][5]14,[18][19][20], while others provide more comprehensive picture of drivers of hospital profitability [6,7,9,13,16,17,21].…”