IMF Growth Projections and Overfitting in Judgment-based Economic Forecasts
In a recent IMF working paper "Overfitting in Judgment-based Economic Forecasts: The Case of IMF Growth Projections", economist Klaus-Peter Hellwig examined IMF's World Economic Forecasts (WEO) and check if the forecast model suffer from the problem of overfitting.
What is Payment on Reserves Process?
The payment on reserve process proposed by Robert Hall and Ricardo Reis is a way of remunerating reserves which would give the central bank...
Blanchard’s “Policy Model” v “Theory Model”
Back in November last year, Professor Olivier Blanchard discussed with me about his view that there should be four types of macroeconomics, and "theory...
Bernanke on Trump’s Fiscal Policy
Ben Bernanke has a new blog post on Brookings. The focus of the post is to explain "the large difference between the reactions of the Fed and the markets to the change in fiscal prospects since the election"
Central Bank’s Balance Sheet and the Rise of Reserves
The above figure shows the balance sheet of four major central banks from 2005 to 2015. Above the horizontal axis is the asset side...
The Missing Profits of Nations and Multinationals’ Extreme Profitability in Tax Havens
The economics of tax evasion is a growing field in academic economics. There are much new exciting research trying to understand the mechanism behind global tax evasion. "The Missing Profits of Nations” by Thomas R. Tørsløv, Ludvig S. Wier and Gabriel Zucman is one of the most noteworthy research on the dynamic behind global tax evasions.
Should Federal Reserve use scenario analysis to handle trade war uncertainty?
The Fed is currently in a "wait and see" mode in deciding what is the reaction to Trump's trade policy. But is it possible for the Fed to be a bit more proactive than merely saying "we will be able to update you further when we know more details"?
Enters scenario analysis.
What is New Keynesian DSGE Models?
DSGE is a methodology for a wide range of macroeconomics models. One of the most common formulations is the so-called New Keynesian model. New Keynesian economics can be interpreted as an effort to combine the methodological tools developed by real business cycle theory with some of the central tenets of Keynesian economics tracing back to Keynes’ own General Theory.
‘Unusually low’ Hong Kong interest rate is a policy choice*
A careful study of Hong Kong's currency peg that explain why the current low-interest rate environment can be interpreted as a result of the Hong Kong Monetary Authority's policy choice.
CoCo issuance and bank fragility
A series of papers by Stefan Avdjiev, Bilyana Bogdanova, Patrick Bolton, Wei Jiang, and Anastasia Kartasheva on this topic is highly recommended.

















