@inbook {3910, title = {Introduction}, booktitle = {Equity policies in global higher education. Reducing inequality and increasing participation and attainment}, year = {2021}, publisher = {Palgrave Macmillan}, organization = {Palgrave Macmillan}, address = {London}, author = {Alberto Amaral}, editor = {Orlanda Tavares and C. S{\'a} and Cristina Sin and Alberto Amaral} }