Paul Romer is an American economist known for his work in the field of endogenous growth theory. He was awarded the Nobel Prize in Economic Sciences in 2018 for his contributions to understanding how ideas and technological innovation drive economic growth. Romer's research emphasizes the importance of knowledge and creativity in fostering economic development. In addition to his academic achievements, Romer served as the Chief Economist at the World Bank from 2016 to 2018. He has also been a professor at New York University and has held positions at other prestigious institutions. His work has influenced policies aimed at promoting innovation and sustainable growth.