How Ottoman trade taxation could erode imperial revenue

One explanation of Ottoman fiscal problems starts with the empire's control of valuable trade routes. Excessive taxes could make longer or riskier alternatives more profitable for merchants, reducing revenue from the routes under Ottoman control. Attempts to attack competing routes then required forces that the state struggled to fund. Shortage of money also encouraged internal competition over resources. The Laffer curve illustrates the possibility of taxation reducing revenue, but its usefulness depends on context and does not establish every political claim made in its name.