@article{baldwin_brown_maynard_2005, 
  title={Interprovincial Differences in GDP Per Capita, Labour Productivity and Work Intensity: 1990-2003}, 
  DOI={10.2139/ssrn.1427377}, 
  publisher={Elsevier BV}, 
  author={Baldwin and Brown and Maynard}, 
  year={2005}
  }