This book explores the concept of "Science for REdesigning Science, Technology and Innovation Policy (SciREX)" as those policies are conducted in a scientific manner. It is the first attempt to measure the effects of science and technology policies and as well as industrial policies on total factor productivity (TFP). The evolution of science and technology in the twentieth century, known as Big Science, led to the realization of an economic structure of mass production and consumption through the expansion of tangible fixed assets. However, since the latter half of the twentieth century, the trend has shifted toward intangible intellectual assets, such as research and development and information processing, resulting in a significant structural change in the economy and society. The book scientifically investigates the effects of this intangible fixed asset investment on the economic structure, evaluates the direction of structural change, and determines the merits and demerits ofits policies based on the state of science and society in the trans-scientific era. To understand the impact of scientific knowledge and information on the economy and society, the book measures the volume of services of intellectual and information assets as intangible fixed assets and their spillover effects among industrial sectors. By measuring the TFP growth rate of industries, the economic spillover effects of intangible fixed asset outcomes are evaluated to measure the impact of science and technology and industrial policy as a scientific approach to science and technology policy.