This book presents an introduction to the effectiveness of the Marketing Information System in the Financial Service Sector. This book also helps those who are interested in Banking, Finance, Mutual funds, and Stockbroking companies. Moreover, this book is the experimental results of the measured MKIS effectiveness by considering Competing Value Models, Elaborated Likelihood Advertising Model, and Technological Acceptance Models. The results revealed the effectiveness of MKIS that leads to Economic advantage, Good Effective Planning, and efficient Market Analytics