I agree inflation is common in the Western world. However, what makes you think Thailand has inflation?
Rents are going through the roof in Australia. They are the same for condos in Chiang Mai and Chiang Rai as they were 4 years ago. Ownership is the same cost as ten years ago. If anything, prices are depressed a little.
Certainly, imported foods have spiked. However, I can't say any of the meat, fruit, vegetables and eggs I buy in local day markets or at Makro have changed so much it has impacted my monthly budget.