Sure 10% deflation would be a problem but so is 10% inflation.
What about 1 or 2% deflation? People would still need food, to replace or repair cars. People would still want and need to buy houses.
Inflation to my mind supposes that we have to have perpetual growth, which is something that is not realistic.
If we grow 3 times the amount of corn that we need this year, do we need to plan to grow 3.1 times next year? Or decrease the cost by 2%? If all the inputs stay the same, where do you get the gains from(assuming that the process is as efficient and automated as possible)?
I think that by printing money and expecting a 1~2% gain every year we just end up robbing ourselves. Companies play games by not giving raises right away, moving production to areas of LCOL or shrinking goods and services but our retirement portfolios go up. Then at the end of the day, you are on a fixed income and having to squeeze down on your consumption.
As I said to a sibling, it is easy to say companies are greedy but how many of us are buying a more expensive product because we know that they treat their employees well? Or do we look at something then try and find it cheaper on Amazon?
In the 90's there was a large amount of disdain for lower income people who were shopping at Wal-mart because they were buying cheap plastic goods from China. The reason they were is because companies were offshoring their jobs. They weren't buying from Wal-mart because they like the products, they were there because they were trying to keep the same lifestyle they had before they lost their higher paying jobs. Companies that did not offshore were driven out of business as their customer base collapsed. We cheated our future selves to keep our inflation targets.