Not sure how to do that, especially to your satisfaction.
Then it would be better not to assert the correlation as if it already exists, or present the graph as evidence of your premise.
To me, that period was a mess, too confusing to draw lessons from. I can't make sense of it. Sorry.
Yet you had no problem presenting a graph and claiming it demonstrates the consequences of a policy enacted eight years earlier.
My explanation for blaming immigration is oversupply causing depression of wages. What mechanism explains blaming Nixon? And make sure the Nixon action is unchanged thus relevant for the entire time period since, since the trend has been continuing since.
For example, the U.S. leaving the gold standard devalued the dollar and contributed to the monetary instability of the 1970s. Nixon also opened trade relations with China, which helped accelerate long-term exposure of U.S. manufacturing to global competition. Both provide plausible mechanisms that could influence wages over a long period of time.
More importantly, notice that when I propose an alternative explanation you immediately ask for a clear mechanism and sustained relevance over time. That is reasonable. But it is the same standard that should apply to your own claim as well.
As long as wages go up faster than inflation, so as to lead to a real improvement in quality of life.
Which is precisely the point. Yet so far no evidence has been provided that the policy you are advocating actually produces that outcome.
Explain how TAXES support a lifestyle.
Taxes can support a certain standard of living by funding services and institutions that reduce the costs individuals must bear themselves. Examples include healthcare systems, education, childcare support, infrastructure, and social safety nets that prevent households from falling below a minimum standard of living.
So now, in the interest of moving the conversation along. I decided to examine your premise. This isn't my job simce you are the one making the claim, but since you seem to be happy with "I don't know if what I say is true, but I'll simply assume it is." We've arrived at an impasse. I used AI to collate the data but the argument is mine.
The first issue is the graph being used. Real wages do not simply show wage growth. They show wage growth after adjusting for inflation. This means that when a graph shows real wages stagnating, it does not necessarily mean wages stopped rising. It could also mean that nominal wages were increasing but inflation was rising at roughly the same pace. Like the data shows was the case in the seventees.
If we look at nominal wage data, wages have in fact risen substantially over time. For example, average hourly earnings for U.S. production and nonsupervisory workers were about $2.90 per hour in 1965 and have increased dramatically since then.
Historical series:
Table Data - Average Hourly Earnings of Production and Nonsupervisory Employees, Trade, Transportation, and Utilities | FRED | St. Louis Fed
The next dataset we need is annual inflation for that same time period. Looking at inflation alongside wages helps determine whether wages actually stagnated or whether purchasing power was being eroded by rising prices.
Historical inflation series:
Consumer Price Index for All Urban Consumers: All Items in U.S. City Average
When we examine the inflation data, a clear pattern emerges. During the 1970s inflation rose dramatically and remained elevated for much of the decade. U.S. inflation exceeded 10% in several years and ultimately peaked above 13% around 1980.
This matters for interpreting the graph you presented. Real wages are wages adjusted for inflation. If inflation rises rapidly, real wages can appear flat even while nominal wages are still increasing.
In other words, workers could have been receiving raises while their purchasing power remained largely unchanged because prices were rising at roughly the same pace. Looking at inflation alongside nominal wage growth therefore helps clarify whether what we are observing is true wage stagnation or primarily the effect of unusually high inflation during that decade.
Finally, we need to look at the actual immigration numbers for the same period.
U.S. immigration statistics:
https://www.migrationpolicy.org/pro...annual-number-of-us-legal-permanent-residents
When we examine immigration levels during the period in question, the pattern does not match the claim being made. The 1970s do not show a dramatic immigration surge that would correspond to the inflation-driven flattening of real wages during that decade.
More importantly, when immigration data are viewed across the entire post‑1965 period, there is no clear point where increases in immigration correspond with sudden slowdowns in wage growth. The trends simply do not line up in a way that would support a straightforward causal relationship between immigration levels and the wage stagnation shown in the earlier graph.
Without that alignment in timing, the graph by itself cannot serve as evidence that immigration reform caused the wage pattern being discussed.
To make the comparison clearer, the three datasets can be visualized together in a simplified graph with time on the horizontal axis and annual growth rates on the vertical axis. The legend identifies the three lines as:
Inflation
Nominal wage growth
Immigration growth
When plotted together, the visual pattern is straightforward. Inflation shows large spikes, particularly during the 1970s and again more recently. Nominal wages broadly move in response to inflation over time. Immigration levels, by contrast, change gradually and do not display spikes corresponding to the periods where real wage growth flattened.
In other words, the most dramatic movements in the data are driven by inflation rather than immigration. If immigration were the primary driver of wage stagnation, we would expect wage slowdowns to coincide with immigration surges. The datasets do not show such alignment.
So when you ask. "Shouldn't we just try and see what happens." I'll simply invert the question.
Why should we try something that has no empirical historical evidence of actually having a meaningfull effect on wages, Likely causing inflation that has plenty of evidence that it effects them?
In fact, I didn't include it but the US has a long history of immigration waves. Waves that economists agree had a positive effect on the economy.