Can you please point me towards a paper that explains this well established effect? I haven't came across any that explicitly states Unions are bad for consumer

Can you please point me towards a paper that explains this well established effect? I haven't came across any that explicitly states Unions are bad for consumers since workers tend to be consumers (high wage = higher disposable income) especially on a Macroeconomics scale. I have seen studies explaining how Unions hurt firm growth since it shifts profits to wages which reduces cash holdings (which reduces the conversion of cash to assets, and the finance cycle continues). But the Macroeconomic of the redistribution of wealth (wage vs profit) is still to be studied, especially in our sharing economy world.