Anna Bottasso, Carolina Castagnetti, and Maurizio Conti, "R&D, Innovation and Knowledge Spillovers: A Reappraisal of Bottazzi and Peri (2007) in the Presence of Cross Sectional Dependence", Journal of Applied Econometrics, Vol. 30, No. 5, 2015, pp. 350-352. The data used in the paper were obtained from Giovanni Peri. The file BP-data.txt contains 405 observations for 15 OECD Countries during the period 1973-99. The variables are defined as follows: Column 1: YEAR -- year of observation Column 2: ID_COUNTRY -- country identifier Column 3: ln(A) - Stock of Domestic Knowledge expressed in logarithm Column 4: ln(R&D) - R&D resources measured by personnel in the R&D sector in full-time equivalents expressed in logarithms The file BP-country.txt contains the following variables: Column 1: COUNTRY -- name of the country Column 2: ID_COUNTRY -- country identifier Both files are ASCII files in DOS format. They are zipped in the file bcc-data.zip. Unix/Linux users should use "unzip -a". The description of the data can be found in the paper A.Bottazzi and G. Peri (2007) "The international dynamics of R&D and innovation in the long run and in the short run", The Economic Journal, 117, 486-511.