DEFINITION of 'Purchasing Power Parity-PPP'. An economic theory that estimates the amount of adjustment needed on the exchange rate between countries in order for the exchange to be equivalent to each currency's purchasing power.
Thomas Edison's most famous invention, the lightbulb, paved the way for modern life.
Thomas Edison. AKA Thomas Alva Edison. Born: 11-Feb-1847 Birthplace: Milan, OH Died: 18-Oct-1931 Location of death: Llewellyn Park, NJ Cause of death: Diabetes complications Remains: Buried, Edison National Historic Site, West Orange, NJ. Gender: Male Religion: Agnostic Race or Ethnicity: White Sexual orientation: Straight Occupation: Inventor. Nationality: United States