Economists have been trained to believe that successful firms should maximize total revenue or minimize costs. This is also called the "Dual Problem." One very successful firm, Chick-fil-A, closes all of their restaurants on Sundays. Chick-fil-A is forgoing revenues from a busy day in the restaurant business. As an economist, this does not make business sense that a firm would choose not to open for business on Sunday. As a Christian economist, it makes perfect sense