A/HRC/35/37 6. Research 114. States should invest in research and the collection and analysis of data on the scope and prevalence of trafficking in persons for labour exploitation in supply chains, specific commodities, sectors, the informal economy and domestic production as the foundation for effective policy and strategy formulation by both public and private sector actors. E. Recommendation to donors 115. Donors should contribute to support the mandate of the Special Rapporteur on trafficking in persons, especially women and children, to enable the mandate holder to continue to pursue the work described in the present report, particularly in the areas identified for further engagement with multi-stakeholder initiatives and industry coalitions. 21