Well if you are being paid $9 per hour now arent you going to expect an extra $1.50 too if a new employee will now be paid what you are making.Common sense says yes.so all wages will have to go up the raised amount logically.
Things will have to go up to cover the cost of the wages so there will be less buying.Spending power will get no better.Are you better off making more if everything else jumps way up in cost...or you get less hours at your job.