TY - JOUR T1 - Evaluating the magnitude of the shadow economy: A direct survey approach JO - Journal of Economic Studies PY - 2006/01/01 AU - Williams CC ED - DO - DOI: 10.1108/01443580610706591 VL - 33 IS - 5 SP - 369 EP - 385 Y2 - 2024/12/22 ER -