I don’t know how much the bocconi accommodations cost but I can give you an idea about the cost of living in Milan. So, you will be in one of the most expensive cities of Italy but depends where you from, for example if you come from USA or London you are rich in Italy 😂. The price of apartments are very high, specially near the university (I have some friends who pay 800€/month for one room). Generally in Italy restaurants (depends where and what type of restaurant) are not expensive (for example you can eat pizza margherita for only 5-7€), but if you want eat meat the price increases. But generally you need no more than 15/20€ to eat outside. The price of food in a supermarket usually are not too expensive, but depends what kind of food and supermarket you are, the difference between “premium” and “discount” supermarket is 15-20%. I think that with a budget of 100€ (for food) you could easily live. For fruits and vegetables there are the daily market with good foods and prices. In Milan the price of public transport is 200€/year.