MER: Marketing Efficiency Ratio

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What does MER mean? MER stands for Marketing Efficiency Ratio and shows how efficiently marketing expenditure is converted into sales. Where is the MER used? MER is primarily used in e-commerce and performance marketing to evaluate the overall efficiency of marketing investments at a glance. What is a good MER? A good MER depends on the business model and industry. As a rule of thumb, an MER above 3 is often considered efficient (€3 in sales per €1 in marketing costs), while values below this indicate potential for optimization.

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