Which of the following is an example of implicit collusion?

Rio Tinto was able to introduce robotic machines into its mining operations because of developments in computer technology, the Global Positioning System (GPS), and robotics

The company's mining operations are an example of ________, in which devices directly communicate data to a computer without a person having to enter the data. A) Artificial Intelligence B) Technological Singularity C) the use of Big Data D) the Internet of Things

Believers in the hypothesis of rational expectations argue that: a. expansionary fiscal and monetary policy can reduce unemployment without creating inflation. b. a trade-off exists between unemployment and inflation even in the long run

c. the Phillips curve is vertical even in the short run for expected changes in inflation. d. the Phillips curve is downward sloping even in the long run.