At the start of the COVID pandemic in 2020, there was a desperate need for more ventilators to care for patients. Ventas, a ventilator manufacturer, was producing about 100 units a month, presumably their profit-maximizing rate of output. General Motors (GM) was called on to assist by producing 10,000 Ventac ventilators per month, presumably their profit-maximizing rate of output. Discuss why GM's profit-maximizing rate of output was so much higher than Ventac's. Additionally, why has GM not continued to produce the Ventac ventilators, essentially stealing Ventac's business?