“…are discussed. In addition to these, the share and ratio of the angel investment within other kinds of the investments in which countries the subject matter are of the studies, the behaviors of the angel investors, sex differences, sectoral distributions and cultural variations are addressed (Wetzel, 1982, Wetzel, 1983, Mason and Harrison, 1997, Prowse, 1998, ACS et al., 1998, Sohl, 1999, Liu, 2000, Mason and Harrison, 2002a, Mason and Harrison, 2002b, Freear et al., 2002, Holaday et al., 2003, Sohl, 2003a, Sohl, 2003b, Mason and Stark, 2004, Sohl, 2006, Harrison and Mason, 2007, Ibrahim, 2008, Sohl, 2008, Wong et al, 2009, Shane, 2012.…”