Mikus,
It's gratifying to know that we agree that income equality has gone up and is not simply a distorted statistic based on some unadjusted numbers. The reports I cited also show that government transfers-- benefits minus refundable tax credits-- have not counteracted the trend to growing inequality. That does a little to undermine the argument that those transfers have effectively bolstered the "compensation" of workers and poor.
I do not come to a conclusion opposite that Kliman, particularly regarding wages paid to production and non-supervisory workers. Fell for 22 years, improved for 6-8, fell again, rose again and still have not exceed the peak recorded some 40 years ago. That's how I've seen it and written it.
I do think Kliman is grossly, I mean grossly mistaken if he is counting corporate contributions towards employee pensions as "compensation." Nothing could be further from the truth. Companies have effectively reduced their pension obligations over the past 25 years, and that reduction in obligation goes directly to the corporate bottom line as profit. Pensions are corporate assets, plain and simple. There is, effectively, no obligation on the part of the corporation to pay a "promised" benefit.
Now maybe Kliman wants to look at the US PBGC that paid out $5.5 billion in FY 2011 to 873,000 people who had been covered by 4300 failed retirement plans, and call that $5.5 billion compensation. I don't think it works like that, since it does not account for the loss in benefits sustained by those thousands. So a "fair" measure would figure the amount of compensation lost to employees in the great retirement heist that began way back in the 1980s.
Simple fact, most workers in the United States have absolutely NO employer sponsored pension plan. Of the 50+million that do, about 30 million of those are under "defined contribution plans" where no benefits are "guaranteed" simply an amount contributed by the employer, which need not be in cash, and which can be reduced, or simply eliminated.
Kliman's argument is that the "stagnation" is not the result of reduced, or static, wages and compensation. I agree. The economic contraction since 2008, and the long term tendency of reduced profitability since, pick one-- 1968-69-70- in the US were neither caused by high wages nor low wages.



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By substantial unequal exchanges, I take it you're including what's called global labour arbitrage?
Anyway, this is the fundamental point many on the left and "leftie" sympathizers don't get very easily. I'd like to add, though, that the "best possible functioning capitalism" would have "fully socialized land rent," as well. For there to be massive reductions in unequal exchanges regarding labour, the whole labour market needs to be "fully socialized," as well.