officials. Yet it is well known that survey respondents are reticent to tell the truth about activities to which social and … legal stigma are attached, implying a downward bias in survey-based estimates of corruption. This paper develops a method to … combination of conventional and random-response survey questions. The responses to these different types of questions reflect …

reads to physical stock counts and to survey responses. There are three main findings. First, current RFID-technology is … of survey responses and physical stock-takes shows much higher accuracy for survey measures. As a result, the study …