ABSTRACT The pooled cross-sectional dataset (1359 firms in total) available for download has some specific features:
* The dataset includes data from wave 1 (2005-2007) and wave 2 (2008-2010) of the Nigerian innovation surveys.
* The year variable identifies the different survey waves. Wave 1 was completed in 2008 and wave 2, in 2011.
* The service variable sorts the observations broadly into manufacturing and services.
* The id variable identifies each unique firm. Repeatedness was ignored because repeated cases are only about 2.5%.
* As much as possible, variables have been matched across the two waves.
* Due to coding changes and some inconsistencies in the survey instrument, a few variables could not be matched.
* Any variable that could not be matched is retained in its original form.
* Some of the variables have notes attached to them. The notes are consistent with what is in the accompanying codebook.xls
* Item numbering on the questionnaire for the two waves are not consistent. Thus, rather than use question numbers for variable names – as is commonly done – intuitive variable names and labels (defined in detail in the accompanying codebook.xls) are used. Read more: http://www.researchgate.net/publication/280742283_Nigerian_innovation_survey_data_collected_with_NEPAD_support_prepared_with_PEDL_funding?channel=doi&linkId=55c5261308aebc967df38875&showFulltext=true
* The dataset includes data from wave 1 (2005-2007) and wave 2 (2008-2010) of the Nigerian innovation surveys.
* The year variable identifies the different survey waves. Wave 1 was completed in 2008 and wave 2, in 2011.
* The service variable sorts the observations broadly into manufacturing and services.
* The id variable identifies each unique firm. Repeatedness was ignored because repeated cases are only about 2.5%.
* As much as possible, variables have been matched across the two waves.
* Due to coding changes and some inconsistencies in the survey instrument, a few variables could not be matched.
* Any variable that could not be matched is retained in its original form.
* Some of the variables have notes attached to them. The notes are consistent with what is in the accompanying codebook.xls
* Item numbering on the questionnaire for the two waves are not consistent. Thus, rather than use question numbers for variable names – as is commonly done – intuitive variable names and labels (defined in detail in the accompanying codebook.xls) are used. Read more: http://www.researchgate.net/publication/280742283_Nigerian_innovation_survey_data_collected_with_NEPAD_support_prepared_with_PEDL_funding?channel=doi&linkId=55c5261308aebc967df38875&showFulltext=true
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