This document is from a World Bank course on governance and anti-corruption. It discusses the importance of good governance for investment and economic growth, citing studies showing the relationship between higher quality governance and higher growth rates and investment. It outlines key aspects of governance systems including both the supply of state institutions and capacities, as well as demand-side accountability from citizens, firms, and oversight institutions. When accountability breaks down, it can lead to problems like corruption, nepotism, and inefficient service delivery. The document emphasizes that improving governance in many areas is important for unlocking growth in developing countries.