This is not the first of its kind study, although the results are different. The one we’re taught about in school is comparing philadelphia and nj. Right across the river from each other. With many people commuting daily from one to another and ease transaction (can stop at burger king on the other side of the river on my way home if cheaper, or can take a better paying job 5 more minutes away, or we’ll just build a burger king across state lines etc).
A significant study on the impact of minimum wage increases, particularly in the Philadelphia area, was conducted by David Card and Alan Krueger. They examined the effects of New Jersey’s 1992 minimum wage hike, which raised the rate to $5.05, on the fast-food industry. This study became a foundational piece of research in the “new minimum wage research” that challenged the traditional economic view that higher minimum wages lead to job losses.
Here’s a more detailed breakdown:
Card and Krueger compared employment levels in fast-food restaurants in New Jersey (where the minimum wage increased) with those in Pennsylvania (where the minimum wage remained unchanged).
They used a “quasi-experiment” approach, leveraging the natural variation in minimum wage laws between the two states.
Initially, their study suggested that the minimum wage increase in New Jersey did not lead to a decrease in employment, and in some cases, even resulted in a slight increase in jobs, particularly in the fast-food industry.
This study, and subsequent ones by Card and Krueger, significantly influenced the debate on minimum wage, shifting the consensus among some economists. They challenged the prevailing view that minimum wage hikes inevitably lead to job losses.
While the Card-Krueger study was influential, some economists have questioned their findings, pointing to potential issues with the data and methodology. For example, a later study suggested that the original study might have been influenced by a single Pennsylvania Burger King franchisee, and that the findings may not be generalizable to other industries.
Philadelphia, as part of Pennsylvania, is subject to the state’s minimum wage, which is currently $7.25 per hour, matching the federal minimum. The city lacks the ability to set its own minimum wage higher than the state level, which means the minimum wage in Philadelphia is effectively lower when adjusted for the city’s higher cost of living.
A study from Pew showed that Philadelphia’s minimum wage, when adjusted for the cost of living, is among the lowest of major US cities. This means that it is difficult for minimum wage workers in Philadelphia to meet basic living expenses.