እንደ ፖለቲካ ፓርቲዎች, መንግስታዊ ያልሆኑ ድርጅቶች እና የንግድ ተቋማት ባሉ የሥራ ባልደረባዎች ላይ የመስክ ሙከራዎችን በተመለከተ ሩጫን Loewen, Rubenson, and Wantchekon (2010), Loewen, Rubenson, and Wantchekon (2010) JA List (2011) እና Gueron (2002).
Kuti mudziwe zokhudzana ndi kuyesa masewera ndi mabungwe omwe akugwirizana nawo monga maphwando apolisi, NGOs, ndi malonda, onani Loewen, Rubenson, and Wantchekon (2010), JA List (2011), ndi Gueron (2002).