Kam Yu

Email: kam.yu@lakeheadu.ca

Kam YuKam Yu is an associate professor at Lakehead University, where he teaches many courses such as mathematical economics and index number theory. From 2010 to 2017, he was a member of the Price Measurement Advisory Committee at Statistics Canada. He has published a book in index numbers and a textbook in mathematical economics.

Papers Published in World Economics:

CPI in the Time of Coronavirus
Author: Kam Yu

The spread of the COVID-19 around the world started in January 2020. Many countries implemented an activity lockdown after the World Health Organization announced pandemic status. Businesses have been ordered by governments to impose severe restrictions on their activities and transactions. Office workers shift their work home, schools are closed, and many factories are shut down. Just before economic lockdown and social distancing policies were announced, total consumer expenditures ?rst spiked, owing to panic buying, and then collapsed after about two weeks. These large ?uctuations in shares of relative expenditure have a profound impact on data collection and calculation of official statistics. This short article focuses on the consumer price index (CPI).

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