The notion that policymaking should be informed by evidence has been an attractive one to both government decision-makers and the community alike in recent years (Banks, 2009;Cherney & Head 2010;Nutley et al, 2007). The pursuit of "more" and/or "better" relationships has consistently been championed as an important strategy to improve the use of a research evidence base for social policy and practice (Nutley et al, 2007;Lavis, 2010;Bogenschneider & Corbett, 2010;Ross, 2011;Shergold, 2011). These relationships are often referred to as "linkages" in the literature, and it is recognised they can be diverse in form (Nutley et al, 2007;Weiss, 1995).A strong association between linkages and research utilisation has been found by a number of empirical studies reported in the literature (for example, Landry et al, 2001aLandry et al, , 2001bLandry et al, 2003;Cherney & McGee, 2011). Many more studies identify linkages as a facilitator for research use or report that a lack of linkages is a key barrier to research uptake (Innvaer et al, 2002;Helmsley-Brown, 2004;Mitton et al, 2007;Oliver et al, 2014). However, very little work has been undertaken to systematically identify how linkages between university academics and social policy-makers shape key processes associated with evidence-based policy-making.This PhD research project used a mixed methods approach, drawing on data gathered via large-scale survey and interview processes with Australian social scientist academics and public servant policymakers, to investigate:• the types of linkages are predominant between academics and policymakers;• the key barriers to and facilitators for developing and sustaining linkages;• how linkages relate to a capacity for research utilisation in policy making contexts; and• how linkages can be enhanced to support the policy uptake of social research evidence.A wide range of linkage arrangements were identified from the data sources. The character and scope of participation in linkage relationships was shaped by a range of interacting, context-dependent factors, including the political environment, dominant paradigms about the role of government in shaping policy and program provision within a sector, differences [ii] in infrastructure and resourcing between policy sectors and departments, and the culture, norms and values within policymaking organisations.The findings of multiple linear regression models applied to academic and policy official survey data revealed a strong association between participation in linkage activities and research utilisation.Linkages were found to build academic and policy official capacities separately, by enhancing individual and organisational knowledge, skills and approaches for research production and use. However, linkages were also found to underpin the development of important new joint capacities, such as the capacity to efficiently and effectively co-produce research. Importantly, both policy officials and academics highlighted the value of linkages for creating the mutual trust, respect ...