TY - JOUR T1 - Is Informal Sector Entrepreneurship Necessity- or Opportunity-driven? Some Lessons from Urban Brazil JO - Business and Management Research UR - http://eprints.whiterose.ac.uk/87290/ PY - 2014/06/01 AU - Williams CC AU - Youssef Y ED - DO - DOI: 10.5430/bmr.v3n1p41 PB - Sciedu Press VL - 3 IS - 1 Y2 - 2025/05/18 ER -