The 2021 Nobel Prize in economic sciences was awarded on Monday to three economists who managed to pioneer research that brought new insights into the labor market. Joshua Angrist, an American economist who works at the Massachusetts Institute of Technology, and Guido Imbens, a Dutch-born economist who works at Stanford University, jointly received half of the prize money for their methodological contributions to the analysis of causal relationships, the Swedish award-giving body said in a statement. David Card, a Canadian-born professor who works at the University of California, was awarded the other half for his research on how minimum wage, immigration, and education affect the labor market. The award comes with a prize of 10 million Swedish crowns (about $1.14 million) and will be shared among the three U.S.-based economists. Card published the studies in the early 1990s and his work has led to new analyses and additional insights that have …