One of your friends states that “operations management and supply chain management are primarily of interest to manufacturing firms.” is this true or false? give some examples to support your answer

This is not true. Just because it talks about operations and supply chain, it does not mean that non-manufacturing industries are not involved. Any business with an operating system has an operations department. The supply chain will depend on the type of services or goods offered. For example, an environmental services consultancy firm is not a manufacturing company. However, it has an operations department to oversee the schedule of sampling personnel for monitoring activities. Moreover, supply chain may refer to the business development department, which is primarily concerned of acquiring more clients to give their services. In addition, equipment must also be supplied so monitoring could be possible.

its simple as this, microeconomics is the study of economics at an individual, group or company level, macroeconomics on the other hand, is the study of a national economy as a whole.

hope it =^-^=