June 16 marked the 12th year that Congress hadn’t raised the federal minimum wage, the longest amount of time the minimum wage has remained unchanged since it was first established in 1938. The last time the U.S. government raised the minimum wage was in May 2007 — that decision increased wages to $7.25 an hour starting July 24, 2009.

Since the minimum wage was created in 1938, it has been irregularly increased at the will of Congress. According to the Economic Policy Institute (EPI), the minimum wage has received a boost nine times since 1938. In the last 81 years, the minimum wage has increased from 25 cents to $7.25.

A January poll found that 55% of registered voters said they would support raising the minimum wage to $15 per hour, and another 27% said it should be increased but to a lesser amount.

But despite the popularity of raising the minimum wage, Congress hasn’t acted on any measures in over a decade. EPI’s Senior Economic Analyst David Cooper says there has been “no openness” to do so among Republicans in Congress.

Weaker purchasing power

Until 1980, Cooper says, Congress increased the minimum wage “relatively regularly — every five years or so.” But in the last 40 years, he explained, Republicans started to strongly oppose minimum wage increases.

“It wasn’t raised at all during the Reagan administration,” he said. “That’s when we saw nine, 10 years between increases.”

While inflation levels are holding steady the purchasing power of the current minimum wage has steadily eroded over the last decade. Since the minimum wage was raised to $7.25, its purchasing power has declined by 17%. That’s a loss of $3,000 in annual earnings for full-time minimum wage workers. Since reaching its buying power peak in 1968, the minimum wage has lost 31% in purchasing power. That means that effectively, minimum wage workers are “earning” more than $6,800 less than they would have in 1968 — when the minimum wage was only $1.60.

“Imagine if someone took 30% out of your paycheck,” Cooper said. “They can afford 31% less than their counterparts five decades ago. That’s huge.”

But he explains this also has negative impacts on the economy, because the lowest-paid workers tend to inject their extra money right back into the economy.

“On a macro level, it’s also damaging,” Cooper said. “Seventy percent of the economy is consumer spending. We are shooting ourselves in the foot from a growth perspective.”

Fight for 15

Raising the minimum wage has been a priority for many politicians, particularly as the 2020 elections draw nearer. Rep. Alexandria Ocasio-Cortez (D-NY) recently attacked Amazon and its CEO Jeff Bezos for paying workers “starvation wages.” Amazon, which raised its minimum wage to all workers to $15 per hour, responded to the congresswoman, calling her allegations “just wrong.”