Since the introduction of stricter modern immigration laws in First World countries, sham marriages have become a common method to allow a foreigner to reside, and possibly gain citizenship, in the more desirable country of the spouse. The couple marries with knowledge that the marriage is solely for the purpose of obtaining the favorable immigration status, and without intending to live as a couple. This is frequently arranged as a business transaction with payment of a sum of money, and occurs more commonly with foreigners already in the country.