Which of these is the decreasing or increasing of the economy's supply of money in order to achieve positive outcomes

The Federal Reserve Board affects the economy by increasing or decreasing the money supply.

The Federal Reserve Board is a seven-member body that governs the Federal Reserve System, the U.S. central bank in charge of making the country's monetary policy. It was created by the Congress to provide the nation with a safer, more flexible, and more stable monetary and financial system.

Ifound this on google “simply, the working conditions were terrible during the industrial revolution. as factories were being built, businesses were in need of workers. with a long line of people willing to work, employers could set wages as low as they wanted because people were willing to do work as long as they got paid.” i hope this you for what your looking for.