The Idea Equation How has the distribution of spending on Research & Development (R&D) changed since 1990, according to the passage? It has decreased overall. It has remained unchanged. It has shifted towards emerging economies. It has become more concentrated among fewer nations.The Idea Equation video Match the definitions. Prompt 1Increasing Returns in idea production Prompt 2Diminishing returns in idea production We now have lots of technologies that make idea production easier. We need more researchers and better incentives just to keep up. It's becoming more expensive to produce new ideas