The analysis included modelling the likely impact that each of the six rent control scenarios would be likely to have on rent levels over the next 10 years, and then drawing on historical data to model the impact the rent changes would have on the size of the private rented sector. This was supplimented by a survey completed by over 800 private landlords and letting agents, and interviews with mortgage lenders. The survey and interviews explored how landlords, letting agents and lenders might respond to changes in tenure security and rent levels, and also interviews.