Every Jan 1st the government produces an "inflation index" and all gross salaries are multiplied by that number. Employers are free to give more; but if your Ja

Every Jan 1st the government produces an "inflation index" and all gross salaries are multiplied by that number. Employers are free to give more; but if your January gross salaries is lower than your dec salary * the index you have a legal case. Employers typically take this into account and reduce the performance based raise they give by the amount. It's great for the low performer or easily replaceable people who get a raise they otherwise would not have gotten and bad for the top performer / more sought after profiles because employer look at the total costs and thus have less legroom for individual increases. It acts as an equaliser in that sense; but the best and brightest are getting way more few kilometres away (it's not like Belgium is a huge country; almost every lives less than 1.5 hour away from the border). For the companies that are less able to pay that automatic inflation; it can be pretty hard/expensive to fire, because the employment laws are quite protective. So the usual solution is to just not hire. Big companies are also finding ways to reduce their headcount and transfer the risk on smaller structure; such as using sub companies and franchising models. Thos inherently reduce employee job security and stability. Unions are fighting this as much as they can; without any success. Companies that need local workforce (retail, ...) adjust their prices accordingly. As an example the same pack of pasta costs ~40% more in Belgium than in France. Many people take their car and drive significant distances to cross the border buy food.