Marketing jobs involves a very broad field in which many different tasks might be required, depending on the company and what they decide is included in the marketing department of their business.
It's closely intertwined with almost all departments of a business, and heavily involves customers more than any other department. You can also go through www.marketergig.com for marketing jobs.
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In general, it involves understanding the needs and wants of customers, and finding ways to provide a service or product to them, based on their needs.
It requires you to identify customers' needs, anticipate when and how they will need it, and then providing them with the supply when they do need it.
Marketing and sales jobs produce revenue from the products that the company makes. In other words, they create customers for the company.
Some marketing jobs are in research, figuring out what is desirable to customers. Another dimension to marketing involves pricing strategies and setting a price that makes it appealing to the customer due to cost and function that is expressed to them through advertising efforts.
Other jobs involve deciding which channels to utilize the get the already price product out to market, be it retail, wholesale, mail-order only, or online.
Finally, there are jobs in which you are solely responsible for the promotion of a product, using tools such as public relations, advertising or marketing communications to enable people to know about a product that has been produced, priced, placed and now available.