<收入及工時按年統計調查報告 : Some comments – Part 4>
The last issue regarding the study : the data collection period is April to June 2009 (i.e. 2nd quarter of 2009). Why is it important?
Given this is an essential input for SMW, and SMW is so important for the economy, we must ensure the data are relevant, representative and free from bias.
So what happened in Q2 of 2009? Every part of the world, including Hong Kong, was suffering from the financial tsunami. Economic outlook was dim at that time, with cool off in wide range of economic activities and rising unemployment.
According to the statistics from Census and Statistics Department, wages declined for almost all sectors (ranging from -0.1% to -3.5%; see here). The unemployment rate was also increasing – Indeed, the 5.4% unemployment rate in 2009Q2 was the highest during the crisis.
There is little more than dangerous than basing your policy and advice on just one snapshot of the economy, like this report (covering only 1 quarter). The information so collected is not reliable, nor relevant. Suppose that with the gradual pick up in economy since the second half of 2009, wages across all sector, gender and education attainment rose. If you set your minimum wage basing on the previous set of wage data, the minimum wage will only cover less people than expected.
Of course, the dis-employment impact will be less. It is one thing that there is less dis-employment, but quite another that you set it incorrectly.
Do they make it up deliberately? I do not think so, because the lead time for survey and data collection is very long. You probably take half a year to plan to have such a study, and another to design the relevant survey etc.
Put it in another way : If the government is so good at fixing the survey period at the time when the financial tsunami was attacking the economy at the hardest, our government will not be in such degeneration mode.
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