Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
The principle of horizontal equity (HE) is considered as a basic principle to follow in order to design and evaluate a redistributive policy. However, the theoretical debate has not yet clarified what exactly horizontal equity is. In this paper we aim to clarify the meaning of the principle of HE and its normative content. In particular, we establish the true status of the two fundaments of the principle of HE, defining what is meant by ‘equals’ and then treating these ‘equals’‘equally’. Our analysis brings forth a new and more appropriate definition of the principle of HE.