Causes of haze and its health effects in Singapore: a replication study

Stellenbosch Working Paper Series No. WP10/2020
 
Publication date: June 2020
 
Author(s):
Jan F. Kiviet (University of Amsterdam and Stellenbosch University)
 
Abstract:

Intermittently Singapore suffers from severe air pollution in periods of intense forest and peatland fires on neighboring South-Asian islands. A recent American Economic Review article modeled the causal relationships between fire intensity in Indonesia and air pollution (PSI) in Singapore, and between PSI and health clinic visits in Singapore. We find serious flaws in the quantitative assessment of these relationships. Attempts are made to repair these using the same classic methodology and data, but also by alternative methods requiring less speculative assumptions. Although actually more detailed data are required, also some results are produced which seem more credible.

 
JEL Classification:

C12, C13, C26, I1, Q53

Keywords:

endogeneity robust inference, environmental economics, health economics, instrument invalidity, sensitivity analysis

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BER Weekly

1 March 2021
Even with the release of data showing a record high unemployment rate in 2020Q4, it turned out to be a fairly good week for the SA economy. Daily new COVID-19 infections remained well contained, while the second batch of 80 000 J&J vaccines arrived (albeit controversially with the grounded SAA being the carrier). In addition, relative to the October...

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