there is no shortage of 'proof' that for marginal 'small' bus. a raise in minimum wage does create issues for their bus. model and does 'trickle down' to their employees as well. For a large bus. whom has the ability to tap resources or spread the cost yes the effect is minimal.
heres one thought experiment as to how willy nilly federally mandated raises in the wage are problematic-
Why Support for the Minimum Wage Persists in Congress: A Thought Experiment | Cato @ Liberty
and
"What Is a Living Wage?" Jon Gertner's overstuffed cover story in the New York Times Magazine, offers a guess that, "Probably only around 3 percent of those in the workforce are actually paid $5.15 an hour or less." The last two words -- "or less" -- are absolutely critical, yet totally ignored as usual.
The Internet leaves no excuse for guessing about what is "probably" true. Just type "Statistical Abstract" into Google, and then click on Section 12, Table 636: "Workers Paid Hourly Rates."
Table 636 reveals that only 520,000 were paid the $5.15 federal minimum wage in 2004. That was merely four-tenths of one percent (0.4 percent) of total non-farm civilian employment -- far short of Gertner's 3 percent adventure in probability. Nearly three times as many U.S. workers (1,483,000) were paid less than the minimum wage. Among full-time workers, only 177,000 earned the $5.15 minimum wage in 2004, while 3.3 times as many (583,000) earned less than $5.15. As I mentioned, the words "or less" after $5.15 are there for a reason.
Whenever the minimum wage has been increased, the most obvious result was an increase in the number earning less than the minimum.
If we ignore the 45 percent of full-time U.S. employees who earn salaries rather than wages, it might almost be true that "around 3 percent" of those paid by the hour are actually paid $5.15 an hour or less. But that is only because 2 percent of those paid by the hour earn less than $5.15 an hour. And that raises an obvious question: How on earth is an increase in the minimum wage supposed to help the nearly 1.5 million people who are not earning that much in the first place?
Below the Minimum Wage | Alan Reynolds | Cato Institute: Daily Commentary
Unfortunately this is behind a Univ. firewall, but, it holds the explanation for the opinion offered by the American Economic Assoc. –
46 % agreed that even having a minimum wage raises unemployment among entry level and unskilled workers
28% percent partly agreed
27% percent disagreed
http://www.indiana.edu/~econed/pdffiles/fall03/fuller.pdf