We make the assumption of holding all else equal when considering supply curves since we want to focus on the changes in the quantity supplied that result from changes in the price of a good and incomes only the income of consumers only the price of a good .

Draw a flowchart for a process of interest to you, such as a quick oil-change service, a factory process you might have worked in, ordering a pizza, renting a car or truck, buying products on the internet, or applying for an automobile loan. identify the points where something (people, information) waits for service or is held in work-in-process inventory, the estimated time to accomplish each activity in the process, and the total flow time. evaluate how well the process worked and what might be done to improve it.