In my Mom’s example, the more positive amenity she gets, she earns less because she could have a higher earning by going to a bigger company or make her company grow faster by adjusting to the working hours of the British clients. If she had wanted to maximize the company profit, she would need to adjust her schedule to the British clients’ working hours because there were many back-and-forth negotiations between the company and its clients for them to reach an agreement on prices and quantities of the products. Since China is 8 hours ahead of UK, the company usually startedstarts to hear from its clients or get inquiries for product information in the afternoon. Her work schedule would become less flexible if she had chosen to reply to the clients in time. Since my Mom didn’t want to sacrifice her time staying with my Dad and me after 6 pm, she chose to reply to part of her emails and calls and got off work before my class ended. The delayed responses that increased the communication costs for clients, which caused the quantity of orderorders for the company’s products to grow slower than other trading companies selling the same products. As the executive manager, she could find more business opportunities for the company and therefore have a higher wage by adjusting her work schedules to UK time.