The technology-based global competition environment that pushes businesses to constructive transformation in order to ensure customer satisfaction has further increased the importance of marketing capabilities in business strategies. The purpose of the literature review is to summarize the previous studies about marketing-financial performance nexus. Studies that were published between 1969 and 2019 could be reached from the EBSCO database were included in the literature review. A significant number of studies conducted in different countries have shown that marketing spending is an investment that creates value for the company and has a positive impact on firm profitability, firm value or firm sales. This study contributes to the literature by summarizing the research findings on the effects of marketing investments on business performance.