Badi H. Baltagi is distinguished Professor of Economics, and Senior Research Associate at the Center for Policy Research, The Maxwell School, Syracuse University. He was George Summey, Jr. Professor of Liberal Arts, at Texas A&M University. Also, part-time chair at the University of Leicester, United Kingdom. Professor Baltagi is the author of several books including: Econometric Analysis of Panel Data, 5th edition (2013, Wiley); and Econometrics, 5th edition (2011, Springer). He is also author or co-author of over 180 publications in leading economics journals, such as Econometrica and Journal of Econometrics. Professor Baltagi is editor of Economics Letters, Empirical Economics, and associate editor of Journal of Econometrics and Econometric Reviews. He is also the replication editor of the Journal of Applied Econometrics. Professor Baltagi is a fellow of the Journal of Econometrics and a recipient of various international awards in econometrics. Francesco Moscone is Professor at Brunel University London, and visiting Professor at the Catholic University of the Sacred Heart Rome. He has previously worked at the University of Leicester, and London School of Economics. He has held visiting scholar positions at University of California-Berkeley, University of Pompeu Fabra, and University of Bergamo. Professor Moscone has been awarded prestigious funding to study health economic issues related to big data and networks. He has served as associate editor for Economic Modelling and currently is associate editor for the journal Empirical Economics. Professor Moscone has published in prestigious journals such as the Lancet and Journal of Health Economics.