Question: Ted Leadbitter's successor is president of what international think tank?
Context: The Copenhagen Institute for Futures Studies (Instituttet for Fremtidsforskning) is Denmark's and one of Scandinavia's largest Futures Studies think tanks.  It was founded in 1970 by Professor Thorkil Kristensen, former OECD Secretary-General, Danish Minister of Finance and member of the Club of Rome.  It is a non-profit think tank and its mission was from the outset to help Danish organizations (public and private) understand and plan for the trends that are shaping their long-term future.  Today it is an international think tank. Edward Leadbitter (18 June 1919 – 23 December 1996) was a British Labour politician.  Leadbitter was a teacher, and served as a councillor on West Hartlepool Borough Council.  Leadbitter was Member of Parliament for Hartlepool from February 1964, until he retired in March 1992.  His successor was Peter Mandelson. The International Institute for Strategic Studies (IISS) is a British research institute (or think tank) in the area of international affairs.  Since 1997 its headquarters have been Arundel House, in London, England.  The 2016 Global Go To Think Tank Index ranked IISS as the thirteenth-best think tank worldwide. Peter Benjamin Mandelson, Baron Mandelson {'1': ", '2': ", '3': ", '4': "} (born 21 October 1953) is a British Labour politician, president of international think tank Policy Network and Chairman of strategic advisory firm Global Counsel. Libertad y Desarrollo, abbreviated to LyD, is a Chilean think tank focused on liberal, free market economic studies.  Founded in 1990, the think tank defines itself as a "center for studies and private research, independent of any political, religious, business, or governmental organization, that is dedicated to the analysis of public affairs promoting the values and principles of a free society".  The think tank is the Chilean representative of RELIAL, the Liberal Network of Latin America ("Red Liberal de America Latina").  The center is divided into 7 programs: Economic Program, Social Program, Society and Politics Program, Legislative Program, Environmental Program, and the Justice Program.  The group's goal is to respond to these various issues with a liberal, free market perspective and to make public policy recommendations specific to Chile for legislators, but not to participate in government directly.  Economists Hernan Büchi, Luis Larraín, Cristián Larroulet are affiliated with the think tank. The Information Technology and Innovation Foundation (ITIF) is a U.S. nonprofit public policy think tank based out of Washington, D.C. The organization focuses on public policies that spur technology innovation.  The University of Pennsylvania rates ITIF the most authoritative science and technology think tank in the United States, and the second most authoritative science and technology think tank in the world, behind Germany's Max Planck Institutes.  Ars Technica has described ITIF as "one of the leading, and most prolific, tech policy think tanks." Vladimir Ivanovich Yakunin (Russian: Владимир Иванович Якунин ; born June 30, 1948 in Melenki, Vladimir Oblast) is a Russian public figure, businessman and former president of Russian Railways (June 2005 – August 2015).  In 2012 he was elected chairman of the Union of Railways (UIC) a position he held until 2015.  In March 2014 he was placed on the US State Department's list of Russian officials and businessmen sanctioned in the wake the annexation of Crimea.  After stepping down as head of Russian Railways he has continued to be engaged in public work as a founder and president of World Public Forum “Dialogue of Civilizations”.  In October 2015 he started work on creating an international think tank focused on the search for solutions to help de-escalate tensions across the world.  DOC Research Institute was launched in July 2016 in Berlin Dr.Wang, Huiyao (Henry) (; born July 2, 1958) is the Founder and President of Center for China and Globalization (CCG),the largest independent global think tank in China which has over 100 full-time researchers and working staff.  According to the "2016 Global Go To Think Tank Index" by the University of Pennsylvania Think Tank and Civil Society Program (TTCSP), the most prestigious think tank ranking in the world, CCG ranked 111th of the top world think tanks and was one of the world's top 40 independent think tanks.  TTCSP ranked CCG as the 7th top think tank in China and No. 1 independent think tank among the top Chinese think tanks.  Dr. Wang is also a top adviser to the Chinese government.  He was appointed as Counselor for China State Council by the Chinese Premier in 2015.  Dr. Wang is a well-known thought leader on China and globalization, China going global, Chinese global migration and talent flows, Chinese students studying abroad and returnees, and on global think tanks.  He is also a top adviser to international organizations such as World Bank, IOM and ILO as well as to global MNCs.  Dr. Wang has an impressive work career span over both Chinese and foreign governments, multinational executive, social entrepreneurial and academic fields. Caleb Crosby is an American think tank executive.  In 2014, he became president of the Alabama Policy Institute (API), a conservative think tank based in Birmingham, Alabama.  Crosby had previously served as API's vice president and chief financial officer.  Prior to joining the think tank, Crosby worked for the 2004 re-election campaign of George W. Bush.  He served in the George W. Bush administration at the Environmental Protection Agency and later at the White House, where he traveled with President Bush as a financial advisor.  Crosby also worked at the United States Department of the Treasury and as CFO of the National Republican Congressional Committee. The '"IMANI Center for Policy and Education"' is an African think tank based in Accra, Ghana.  As a member of the Atlas Economic Research Foundation, the think tank applies free market solutions to intricate domestic social problems.  It was founded in 2004 by Franklin Cudjoe, who currently serves as the president and chief executive officer.  The think tank's operations center on these four thematic areas: rule of law, market growth and development, individual rights, and human security and institutional development.  IMANI uses the Africanliberty.org platform as a springboard to reach out to the larger African audience in five international languages, including Swahili.IMANI exerts influence in the Ghanaian public education and policy sphere through media appearances, publications, research, and seminars.  The think tank is ranked by the Global Go To Think Tanks and Civil Societies Program, organized annually by the University of Pennsylvania.  According to the 2009 Index Report, IMANI was ranked fifth most influential in Sub-Saharan Africa, and the only African think tank to make the list of top 25 "Most Innovative" across the world.
Answer: Policy Network