Why governments and companies invest in science and technology.

22.1 Introduction; 22.2 Science and technology payoff; 22.3 Global trends in S&T; 22.3.1 Global investments in R&D are large; 22.3.2 The role of governments in R&D funding is decreasing; 22.3.3 Increased company R&D reflects the technology-intensive global economy; 22.3.4 Technology output is reflected in technology trade; 22.3.5 Greater importance of science and engineering education; 22.3.6 Increasing globalization of the R&D enterprise; 22.4 Complexity in the global context; 22.5 Communicating the value of science [ABSTRACT FROM AUTHOR]