MAREK PĘCZKOWSKI Tweet project involvement: expert MICRODYN - Competitiveness in the Knowledge-Based Economy case publications Distinguishing persistent from occasional innovators: the case of Polish manufacturing firms Complementarities between barriers to innovation: data evidence from Poland Differentiation of Innovation Behavior of Manufacturing Firms in the New Member States. Cluster Analysis on Firm-Level Data The Innovation Patterns of Firms in Low and High Technology Manufacturing Sectors in the New Member States