books.google.fr - While movement activists spend much of their time and energy trying to change the world and we think that social movements often matter, our theoretical and empirical knowledge in this field is still relatively poor. Social Protest and Policy Change offers a systematic and empirically grounded analysis...https://books.google.fr/books/about/Social_Protest_and_Policy_Change.html?hl=fr&id=Kn6YhNtyVigC&utm_source=gb-gplus-shareSocial Protest and Policy Change