A number of socio-economic factors are thought to be responsible for this reality. They include: the historic role of the English language in Canada and the U.S.; its growing influence in the business and scientific world; the perceived advantages of learning English that result from this prominence and which are particularly appealing to allophones who have yet to make a linguistic commitment; the historic association of English with immigrant Quebecers and French with ethnic French-Canadian Québécois, which plays into linguistic and identity politics; and the post-industrial clustering of anglophones into Montreal and away from regional communities. These factors go not only to allophone immigrants' direct linguistic assimilation, but also their indirect assimilation through contact with the private sector. Although the Charter of the French language makes French the official language of the workplace, the socio-economic factors cited here also often make English a requirement for employment, especially in Montreal, and to a lesser extent outside of it, notably in Canada's National Capital Region, bordering Ontario, and in the Eastern Townships, particularly Sherbrooke.