That's inflation. Inflation is when a certain form of currency starts to have less value over time. Mainly two things cause it: people's perception of value, and the economic principle of supply and demand.
Homefacts City Report. Emmaus is located in Lehigh County, PA. The population is 11,268, making Emmaus the 4th largest city in Lehigh County. There are 4 public schools in Emmaus with an average Homefacts rating of A-. The total crime rate for Emmaus is low, and there are 11 registered sex offenders residing in the city.
WELCOME TO THE BOROUGH OF EMMAUS. Emmaus, Pennsylvania is a quaint historic community of 12,000 nestled on the northern slope of South Mountain. It lies 50 miles north of Philadelphia and 20 miles west of the Delaware River. Formed in 1759 as a closed Moravian village on land owned by the church, Emmaus was incorporated as a Pennsylvania borough a hundred years later in 1859.