Data policies of highly ranked social science journals

By encouraging and requiring that authors share their data in order to publish articles, scholarly journals have become an important actor in the movement to improve the openness of data and the reproducibility of research. But how many social science journals encourage or mandate that authors share the data supporting their research findings? What influences these journals' decisions to adopt such policies and instructions? And what do those policies and instructions look like? We will discuss the results of our analysis of the instructions and policies of 291 highly ranked journals publishing social science research, where we looked for and measured the quality of journal data policies and instructions across 14 variables, such as when and how authors are asked to share their data, and what role journal ranking and age play in the existence and quality of data policies and instruction