Are there jobs that could be done, but which don’t have enough value to warrant minimum wage? Sure. Given a wage low enough, you could hire people to pick up trash in ditches, sweep streets, and everyone could hire people to mow their lawns, clip their hedges, wash their cars, etc.
Anyone remember full-service gas stations? There are a handful still around, but they largely went the way of the dodo. Why? Because people weren’t willing to pay enough of a premium to pay the wage of someone to wash their window and pump their gas. We’d still LIKE to have it done for us, but we won’t pay much. So, the gas station attendant industry has almost vanished. I wonder how many people it used to employ?
But this isn’t necessarily the fault of the minimum wage. It may simply be that the lowest rung in America got wealthy enough that they were no longer willing to do that job for the wage it is worth. After all, fast food places in my city all pay well over minimum wage, 'cause that’s what they have to pay to attract the workforce they need. If the lowest amount of money people in America will work for is more than minimum wage, then moving the minimum wage amount around under that ‘floor’ will do nothing. That may be what has happened in the last minimum wage hike - it didn’t cost jobs because it was still below the prevailing wage after the increase.
But if you raise it enough, you WILL cost jobs. First, jobs that people would like to have done and which are done today will be lost because no one will be able to hire people to do them while still making a profit. And that loss of economic activity is a real net wealth loss to the country, which means either the poor lose as well, or the rich have to be taxed more, which will also cost in economic activity…
There are no free lunches. You can’t increase the value of someone’s job by fiat - you can only increase the price of it. If the price rises above the value, that job is gone, and we have removed a productive person from the economy and made him sit aside and do nothing. This is not good for anyone.
Another problem with raising the minimum wage is this: You make the economy more ‘brittle’ and prone to damage in a recession. If you let the minimum wage float up with real productivity gains, it might not do much damage, if any at all. But now if you have a recession and a real productivity loss in the workforce, suddenly the market can’t employ the natural mechanism for this - price reductions to match the declining value of labor - and you suddenly cause a whole bunch of unemployment during the recession, making it deeper.
The market needs the free movement of prices to work properly. When you institute price controls you create shortages, and you prevent the market from functioning correctly. This is not a good idea.
John Mace’s idea of abolishing the minimum wage and substituting welfare might help, because the market would still be free to work. It’s now, however, being subsidized as well (welfare is essentially a labor subsidy). You’re you’re still messing with it, just in the other direction.
To those who believe that absent a minimum wage, competition would drive the price of labor into the ground, ask yourself - how come most wages are already above minimum wage? Why haven’t wages all been driven down to the minimum wage?
The answer is because the labor pool has its own demands. We aren’t serfs. Even the poor can tell you go go stuff it if they don’t like what you have to offer. The laws of supply and demand work both ways. Companies have to bid for labor, aganst each other. If one decides to ‘drive the price down’ by lowering salaries, he’ll soon find that either he can’t find the people he needs, or the ones he gets are the ones that weren’t good enough to work at the places they tried first - the ones with the higher wages. So now he’s at a competitive disadvantage, and will have to start offering more money to get the people he wants.