Another interesting point would be to ask the expert about alternative exchange systems. Indeed, they too can influence the way we define work and valorize it. As an example, today in Paris, in order to give an activity to migrants arriving in cities, some NGO’s have used “time tickets” as a currency: you contribute and then you have access to goods and services provided (for two gardening hours, you have access to a set of dishes or to internet for a week, etc). Some platforms also promote barter (troc, in French): you give a two hours sewing lesson and you get a certain amount of points that give you access to furniture, for instance. All of these example illustrate the possibility for activities to be created at the local scale, and create value out of the classic economic, legal and financial systems. The question would be: to what extent are these alternatives realistic considering the economic, political and legal barriers they encounter?