The Technological Innovation Panel (PITEC) - ICONO

More documents

Recommendations

Info

eplace the firm-level observations of five quantitative variables (Turnover, Investment,Number of employees, Innovation expenditures and Number of R&D employees) withdata generated by means of a “hiding” process of the original observations; b) to replacethe firm-level observations of the rest of the quantitative variables with the percentagevalue with respect to the aggregated value (for example, intramural R&D expenditure isreplaced by the percentage of intramural R&D expenditure on total innovationexpenditure); c) to replace the (4-digit) NACE Codes with a 56-industry breakdown until2008 and with a 44-industry breakdown from 2008. Both industry breakdowns areavailable for 2008; d) to censor the data of a given number of firms (45, 63, 81, 90, 92,93, 111 and 113 firms in 2003, 2004, 2005, 2006, 2007, 2008, 2009 and 2010,respectively). Detailed description of the anonymization method can be found inAppendix on anonymization.Note: Accessibility conditions on the “non- anonymized” filesThe data available on the web site might be good enough to carry out many statistical andeconometric studies. In view of the anonymization method applied, the expectedestimation bias is small. Nevertheless, once results have been obtained with theanonymized data, a researcher may want to use the “non-modified” data. Given theequivalence between the two “types” of files (files on the web and “non-modified” files),changing from one “type” of file to the other can be done at a slight cost. Theaccessibility conditions to the “non-modified” files will be defined by the INE.3. SamplesFor reasons of opportunity and viability, PITEC started with two samples with data from2003: a sample of firms with 200 or more employees (sample of big firms (MEG), whichrepresented 73% of all firms with 200 or more employees according to data from theDIRCE), and a sample of firms with intramural R&D expenditures (MID). Given theimprovements made by the INE in information on firms undertaking R&D activities,there were enlargements of the second sample in 2004 and 2005.4
Moreover, in 2004, a sample of firms with fewer than 200 employees, external R&Dexpenditure and no intramural R&D expenditure (MIDE); and a representative sample offirms with fewer than 200 employees and no innovation expenditure (MEP) wereincluded.Table A shows the evolution of the samples over the years 2003, 2004, 2005, 2006, 2007,2008, 2009 and 2010. The figures shown in this table fit with the data in the files.Moreover, Table A helps to evaluate the representativity of the samples. Given that wehave partially overlapping samples, Table Abis is important for learning more about thefigures.Note: Using the sample of firms with intramural R&D expendituresDue to enlargements of the MID sample in 2004 and 2005, temporal analysis of thissample should be done with some caveats. In this sense, the analysis of the persistence inperforming intramural R&D over time should be affected by a lower probability ofpersistence in performing intramural R&D among newly incorporated firms.4. Files4.1 DesignThere is a data file for each year t. The number of rows (records) in the file of year t isequal to the number of firms covered until that year: No firm (record) is deleted, althoughthe firm disappears due to death and attrition, among other reasons. This makes it easierto use the files. A firm holds the same file each year, and the new firms in t areincorporated as new rows (records) in the file of year t.The number of columns (fields) in the file of year t is equal to the total number ofvariables included until that year. A variable holds the same column each year, and the5
Page 2 and 3: Table of contents1. PITEC2. Data, u
Page 6 and 7: new variables in t are incorporated
Page 10 and 11: Table Abis (cont.). Sample of firms
Page 12 and 13: spending, the source of funding and
Page 14: Firstly, there are changes in the w

The Technological Innovation Panel (PITEC) - ICONO

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?