selection bias. Using a novel dataset of the whole population of patents by Belgian firms, we show that the single-office count … results in a selection bias that affects econometric estimates of innovation production functions. We propose a methodology to … evaluate whether estimates that rely on the single-office count are affected by a selection bias …

selection bias. Using a novel dataset of the whole population of patents by Belgian firms, we show that the single-office count … results in a selection bias that affects econometric estimates of innovation production functions. We propose a methodology to … evaluate whether estimates that rely on the single-office count are affected by a selection bias. -- Innovation production …

policy purposes. In this paper we set out a theoretical framework for the systematic consideration of "randomisation bias …", and provide what is to our knowledge the first empirical evidence on this form of bias in an actual social experiment, the …