This paper extends the frameworks developed by Park and Kildow (2014) to explore the use of supply chains to classify and organize ocean industries. Canada’s experience with measuring the economic contribution of ocean related sectors is discussed; with particular emphasis on illustrating the supply chain approach and of highlighting the multiple practical challenges that arise in defining and measuring the ocean economy. The overall conclusion is that Canada has succeeded in developing a methodological framework that allows it to report, on an annual basis high level estimates of gross domestic product, employment and labour income generated directly and indirectly by ocean sectors in Canada. The main challenge encountered is the potential for double counting, as a result of poor industry definition and use of input-output models to calculate total impacts (i.e. direct, indirect and induced).
De Maio, Alejandro and Irwin, Christine
"From the Orderly World of Frameworks to the Messy World of Data: Canada’s Experience Measuring the Economic Contribution of Maritime Industries,"
Journal of Ocean and Coastal Economics:
2, Article 9.