Using the degree of a son-preference culture (SPC) in an area as a measure of local firms’ nontokenism motives to appoint female directors, this paper examines how the value impact of women’s representation on boards (WROB) varies across different motives of female director appointments in...

Original polypropylene (PP) foams with radially gradient porous structures and selective filtration were developed through the supercritical CO 2 assisted extrusion foaming couple with the stretching auxiliary. Firstly, the relationship among the physical characteristics, processing technology...