Contributor(s): Professor Alan Manning | Immigration is currently the most common response when asked about the most important issues facing Britain. This lecture will explain why there is a demand for immigration into the UK, and what the effects of it has been. Alan Manning is Professor of Economics at the London School of Economics and Political Science and is Director of the Centre for Economic Performance’s research programme on Community. The Department of Economics at LSE (@LSEEcon) is one of the largest economics departments in the world. Its size ensures that all areas of economics are strongly represented in both research and teaching. The Centre For Macroeconomics (@CFMUK) brings together world-class experts to carry out pioneering research on the global economic crisis and to help design policies that alleviate it.