I write this book aim to let readers to raise knowledge how to use business science attitude to judge whether how to achieve strategies to predict any business market development to achieve business plan more accurately. The first market concerns travel industry: How to predict future travel behaviour from past travel behaviour for travel agents benefits. I shall indicate how to predict travel behavioural consumption from psychology view and computer statistic both view points and qualitative of travel behavioural method to achieve how to operate travel business more successfully. The second market concerns school education industry. I shall indicate what the factors can influence the final grades of academic students. I shall give examples to explain why these factors can influence the final grades to be bad of academic students easily. Those factors include: tutoring method factor, class attendance and academic performance factor, drinking and academic motivation factor, the link between sleep quantity and academic performance factor, the relationship between physical fitness and academic performance factor, the relationship between student's learning style and academic performance factor as well as the relationship between time management and academic performance total seven factors. The third market concerns outsourcing either manufacturing or service strategy. Although, nowadays, outsourcing is popular strategy to any global organizations. But they neglect outsourcing strategy has also disadvantages. I shall explain why outsourcing strategy can bring benefits to some organizations, but it can also bring disadvantages to some organizations. I shall indicate evidences to explain what the reasons are not right when the organizations choose outsourcing strategy. I shall explain why any organizations need to analyze their situations whether are suitable to apply outsourcing strategy to operate their management, before they decide to make outsourcing strategy. The fourth market concerns multi-level market. Pyramid scheme of the economic analysis of the criteria is used to distinguish what the difference is multi level marketing sale channel and direct personal sale channel . I shall utilize economy theory in reaching the opinion what the difference view points were between direct personal sale and multi level marketing, toward determining whether the reasoning can also generate false positive. I also discuss the welfare implications of different tests that might be used to distinguish a legitimate direct seller ( pyramid scheme) and multi-level marketing from a fraud. The, I shall indicate the different types of consumer frauds by calculation and considerations which both employ to detect whether pyramid and personal direct sale fraud both are occurring. Finally, I shall explain whether Multi-Level Marketing can assist global economic growth in our societies.