“…According to Feld and Schneider's summary of 32 studies on the shadow economy and its causes, "increase of the tax and social security contribution burdens" was by far the most important single contributor to the increase of the shadow economy, followed by "tax morale," "quality of state institutions," and "specific labor market regulations" (2010). However, contrary to traditional thinking that the tax burden is a significant driver of the shadow economy, some scholars have presented opposing empirical research results showing that the tax burden has a negative correlation with the shadow economy (Friedman, Johnson, and Kaufmann 2000;Stankevičius and Vasiliauskaite 2014). Cumbersome labor-market restrictions, loss of access to the formal financial sector, and weak governance and institutions also determine the size of the shadow economy (Singh, Jain-Chandra, and Mohommad 2012).…”