From the perspective of someone who is both an economist and a former school board member, this paper assesses the use of test-score data by policy-makers and academic researchers. The absence of interval scales often makes the interpretation of test-scores and the indicators derived from them...

We show that increasing the probability of obtaining a job offer through the network should raise the observed mean wage in jobs found through formal (non-network) channels relative to that in jobs found through the network. This prediction also holds at all percentiles of the observed wage...