Has development thinking become too narrow and specialised? Does it fail to draw on learning from outside the realm of development studies about how social change happens? This report presents an overview of approaches used to explain social change from a wide range of academic perspectives, from history, politics and economics to psychology and geography. These are summarised in a useful table, which presents a series of questions as a flexible tool for thinking about how change happens. The author argues that current development thinking uses only a narrow range of approaches to change and the result is that most development strategies are limited. They: are excessively reformist and insensitive to underlying power and inequality largely ignore environmental issues overlook the importance of personal relationships and promoting mutual understanding as a strategy for change fail to appreciate fully the contextual factors that limit change lack a multidisciplinary agility to draw on the broad range of approaches to change that exist outside the confines of development studies. There is a need for broader thinking about how change happens, so that we can be more creative in devising strategies and more adept at facing the huge challenges that confront our societies and planet.