This report highlights the paradox within impact investing: the prioritisation of ‘social impact’ without prioritising ‘impact evidence’. The growth of metrics, ratings and certification-based approaches has sought to address this gap but this only goes so far, and there is a need for a more evaluative approach to assessing impact. More details

This report explains the methodology used to analyse the demand for evidence and accountability within the impact investment market. Social network analysis, qualitative interviews and ego network analysis were used to explore actors within this market (or system), drawing on data from Twitter to consider connections, influence and conversations about social impact. More details

This study is one of three making up the qualitative part of an independent evaluation of the Savannah Accelerated Development Authority (SADA) Millennium Villages Project (MVP) (2012–17). More details

Impact investing – investing for social and environmental returns alongside financial returns – is a growing phenomenon in financial markets. However, concerns exist regarding the demand for robust impact evidence and accountability for impact claims when compared to a public sector aid model. More details

This panel discussion is supported by the Institute of Development Studies' Department for International Development Accountable Grant, with a view to continue a dialogue around the use and application of ethics in impact evaluation. More details

Realist evaluation provides valuable insights into how and why programmes lead to change, and can generate transferable lessons to help practitioners roll out or scale up an intervention. However, as yet there are few standards and guidelines governing what counts as a ‘good’ realist evaluation. More details

This CDI Practice Paper by Richard Longhurst, Peter Wichmand and Burt Perrin discusses how evaluability assessments (EAs) can support the choice of evaluation approaches for determining impact, drawing on recent experiences of the International Programme on the Elimination of Child Labour of the International Labour Office. More details

This CDI Practice Paper by Richard Longhurst, Peter Wichmand and Burt Perrin discusses how evaluability assessments (EAs) can support the choice of evaluation approaches for determining impact, drawing on recent experiences of the International Programme on the Elimination of Child Labour of the International Labour Office. More details

This CDI Practice Paper reflects on the use of participatory statistics to assess the impact of interventions to eradicate slavery and bonded labour. More details

There is widespread recognition that mixed-methods approaches are a ‘platinum standard’ in research and evaluation and that the expanding availability of secondary quantitative data creates unprecedented opportunities for studying poverty and evaluating poverty reduction programmes. More details

This paper by Adinda Van Hemelrijck and Irene Guijt explores how impact evaluation can live up to standards broader than statistical rigour in ways that address challenges of complexity and enable stakeholders to engage meaningfully. More details

A heightened focus on demonstrating development results has increased the stakes for evaluating impact (Stern 2015), while the more complex objectives and designs of international aid programmes make it ever more challenging to attribute effects to a particular intervention (Befani, Barnett and Stern 2014). More details

‘Impact’ in impact investing has been touted as bringing a new dimension to investing, going beyond investment’s traditional ‘risk’ and ‘return’ dimensions, and even becoming a new paradigm in solving society’s problems. More details

As part of the International Year of Evaluation 2015, this Wilton Park convened meeting gave evaluation professionals, development partners, and investors an open forum to review recent evaluation experience, debate evaluation governance issues, and probe the methodological questions brought about by the market-based revolution. More details

In terms of structure, this summary paper will first discuss findings from a review of documents presenting various methods of evaluating, assessing and/or measuring impact investments. Then, this paper covers literature on the evaluation of impact investments, including social and development impact bonds (SIBs/DIBs); and finally, this paper briefly reviews other modalities of socially-oriented investments. More details

This CDI Practice Paper by Melanie Punton and Katharina Welle explains the methodological and theoretical foundations of process tracing, and discusses its potential application in international development impact evaluations. More details

In 2011, the UK Department for International Development (DFID) commissioned an impact evaluation of the Millennium Village Project (MVP) in Northern Ghana. More details

This IDS Bulletin explores new frontiers in international development evaluation, making a useful contribution to an ongoing debate about how to assess effects and effectiveness without ignoring the complexity of the contemporary development landscape. More details

This IDS Bulletin presents a 'rallying cry' for impact evaluation to rise to the challenges of a post-MDG/post-2015 world. It is the first of two issues that follow a workshop entitled 'Impact, Innovation and Learning: Towards a Research and Practice Agenda for the Future', held at IDS in March 2013. More details

Child undernutrition remains one of the most devastating realities in many parts of the world. The use of mobile phone technology may offer innovative opportunities to tackle persistently high levels of child undernutrition. More details