About 21CC HOME » ABOUT 21CC 21st Century Cities Initiative The 21st Century Cities Initiative (21CC) at Johns Hopkins University is the campus hub for research, teaching, and outreach related to urban economic growth and urban quality of life. Through rigorous data analysis and policy evaluation, our center focuses on how to align the incentives of the private sector and federal, state, and local governments to unlock the full potential of cities including Baltimore, U.S, and international cities. City residents and firms gain from the benefits of density. When we live at close physical proximity, we learn more from each other, we can more easily trade and interact with each other, and we can specialize in activity where we have a comparative advantage because we know that we can trade with others who have an edge in supplying services that we demand but that we do not have the time to produce for ourselves. While cities offer great opportunities, they also impose costs. Cities suffer from various degrees of pollution, traffic congestion, and crime. These social costs can significantly lower urban quality of life. 21CC seeks to identify cost effective strategies for accentuating the gains from urban density while mitigating the social costs of living and working in close physical proximity. Partnering to Improve Cities 21CC is a critical part of Johns Hopkins University’s larger efforts to support and strengthen Baltimore and other cities with similar challenges. As Baltimore’s largest anchor institution, Johns Hopkins takes seriously its obligations as an employer, real estate holder and economic engine. The university oversees a number of community building initiatives, such as inclusive neighborhood revitalization strategies surrounding its campuses, local hiring and purchasing programs, and live where you work subsidies for employees. We work closely with more than 200 Johns Hopkins faculty members across disciplines who are interested in issues related to cities 21CC coordinates with the various research efforts across the university in developing and implementing its research, convening and policy activities. Follow us on Twitter, LinkedIn, YouTube, and Facebook. Intern With Us 21CC has opportunities available for Johns Hopkins undergraduates to intern with us and work on a variety of research projects both at the center and in partnership with city agencies. To learn more, please contact Mac McComas, MacMcComas@jhu.edu and visit our intern page. 21CC Staff Matthew E. Kahn – Director Mac McComas – Senior Program Manager Vrshank Ravi – Pre-doctoral Research Fellow Bruce Hamilton – Senior Fellow Nils Kok – Senior Fellow Denise DiPasquale – Senior Fellow Stuart Schrader – Senior Fellow Mary Miller – Senior Fellow Steering Committee Beth Blauer – Executive Director, Centers for Civic Impact – Krieger School of Arts & Sciences Robert Blum – William H. Gates Sr. Professor, Chair, Department of Population, Family and Reproductive Health, Director, Urban Health Institute – Bloomberg School of Public Health Tamas Budavari – Associate Professor, Applied Math and Statistics – Whiting School of Engineering Filipe Campante – Bloomberg Distinguished Associate Professor, International Economics and Economics – School of Advanced International Studies and Krieger School of Arts & Sciences Andrew Cherlin – Benjamin H. Griswold III Professor, Department Chair, Department of Sociology, Director, Hopkins Population Center – Krieger School of Arts & Sciences Stefanie DeLuca – James Coleman Professor of Sociology & Social Policy, Co-Director, Poverty and Inequality Research Lab – Krieger School of Arts & Sciences Deborah Gross – Professor, Leonard and Helen Stulman Endowed Chair – School of Nursing Lingxin Hao – Professor, Sociology – Krieger School of Arts & Sciences Jeanne Hitchcock – Special Advisor to the Vice President – Government and Community Affairs Yujung Hwang – Assistant Professor, Economics – Krieger School of Arts & Sciences Philip Leaf – Professor of Mental Health, Director of the Center for Adolescent Health – Krieger School of Arts & Sciences, School of Education, School of Nursing Robert Lieberman – Krieger-Eisenhower Professor, Political Science – Krieger School of Arts and Sciences Robert Moffitt – Krieger-Eisenhower Professor, Department Chair, Economics – Krieger School of Arts & Sciences Nicholas Papageorge – Broadus Mitchell Assistant Professor, Economics – Krieger School of Arts & Sciences Phillip Phan – Alonzo and Virginia Decker Professor of Strategy and Entrepreneurship – Carey Business School Craig Pollack – Associate Professor, Health Policy and Management – Bloomberg School of Public Health and School of Medicine Luis Quintero – Assistant Professor of Urban Real Estate and Economics – Carey Business School Alessandro Rebucci – Associate Professor, Economics – Carey Business School Darlene Saporu – Assistant Dean for Diversity and Inclusion – Krieger School of Arts & Sciences and Whiting School of Engineering Emilia Simeonova – Assistant Professor, Economics – Carey Business School Lester Spence – Associate Professor, Political Science – Krieger School of Arts & Sciences Lindsay Thompson – Associate Professor, Director, CityLab – Carey Business School