Are quarantine restrictions effective in reducing the spread of the virus?

The Tengrinews published a piece on the research conducted by the NU GSPP Assistant Professor Simeon Nanovsky about effectiveness of the quarantine measures.

In regards to COVID-19, the research uses Kazakhstan and Kyrgyzstan as a case study to argue that quarantine restrictions influence the growth rate of new cases and not the levels of new cases. The data shows that as quarantine restrictions are imposed the growth rate is gradually reduced, and when restrictions are removed the growth rate is gradually increased. Based on this, it is argued that the effectiveness of restrictions can be measured as the amount of reduction in the growth rate of new cases during a time of restriction.

Read full version of the research here