Sustentación tesis doctorado

Paper 1. Effects of innovative effort on different components of productivity: Evidence for the Colombian manufacturing industry

Fernando Barrios Aguirre

This document focuses on estimating the effect of innovative effort on productivity, when it is disaggregated in terms of productive technical efficiency and other components associated with demand and unit input costs. These components are developed and estimated from panel data. I show that demand characteristics are the elements where the innovative effort affects in greater proportion. These results will be analyzed from the annual manufacturing survey (EAM) between 2003-2012 and the surveys of innovation and technological development for the manufacturing industry (EDIT) provided by the DANE between 2008-2012.

Paper 2. Impacts of financial support on innovation and productivity in Colombian manufacturing firms

Fernando Barrios Aguirre, Clemente Forero Pineda, and Guillermo Perry Rubio

The impact of public, private and commercial  financial support is evaluated on disaggregated productivity in the Colombian manufacturing firms and innovation counts. To control the possible selection bias, we apply propensity score matching (PSM) to a sample of 9173 manufacturing firms for the period 2008 to 2011-2012 by combining data from two available sources (Survey Development and Technological Innovation -EDIT and Annual Manufacturing Survey - EAM-). The results show that public and commercial  financial support does not have an effect on the level of the different components of disaggregated productivity. However, we  find that the allocation of the  firm's own resources to innovation activities has a positive effect on revenue productivity and negative effect in demand.

Paper 3. Obstacles to Innovation and R&D expenditure: Evidence for the Colombian manufacturing industry

Fernando Barrios Aguirre

This document focuses on identifying obstacles that are preventing firms from innovating massively, disaggregated into financial, demand, knowledge, cooperation and regulatory barriers on the inputs and products of innovation at firm level. Using the Colombian technological innovation and development survey (EDIT), and based on an instrumental variable fixed effects estimators of the panel, we found that the probability of generating innovation results is significantly reduced by demand, cooperation and regulatory barriers. With respect to inputs for innovation, we find a clear negative relationship between financial, demand, cooperation and regulatory obstacles and the total innovative effort and product innovations but positive relation in propensity to incur in R&D expenses with demand, cooperation and regulator obstacles. These results will be analyzed from the annual manufacturing survey (EAM) between 2008-2016 and the surveys of innovation and technological development for the manufacturing industry (EDIT) provided by the DANE between 2008-2016.