Simple macroeconomics for trading

June 7, 2017

Most modern dynamic economic models are too complex and ambiguous to support macro trading. A practical alternative is a simplified static model of the “New Keynesian” tradition that combines basic insights from dynamic equilibrium theory with an intuitive and memorable representation. Macro traders can analyse real life events in this framework my shifting curves in a simple diagram. In this way they can analyse the effect of fiscal policy shocks, monetary policy shocks, inflation expectation shocks, economic supply shocks and so forth. Part 1 of this post focuses on a model for a large closed economy (or the world as a whole).

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The “low risk effect” in financial markets

May 27, 2017

Low-beta and low-volatility securities can produce superior risk-adjusted returns. Thus, portfolios of calibrated low- versus high-vol stock positions have historically generated significant alpha. Other asset classes display similar ‘low risk effects’. Their plausible cause is many investors’ limited access to leverage and willingness to pay a premium for securities with greater exposure to market performance. Some investors may also pay a premium for lottery-like payoffs with large upside potential. For leveraged portfolio managers this creates relative value opportunities in form of ‘betting against market correlation’ or ‘betting against volatility’.

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Explosive dynamics in exchange rates

May 20, 2017

Explosiveness in financial markets means that prices display exponential growth. In recent years statistical tests have been developed to locate mildly explosive bubble periods in real time. In conjunction with judgment on underlying fundamentals they help detecting price distortions. A new paper shows how tests for explosiveness can be applied to exchange rates. The tests suggest that developed market currencies have recurrently experienced episodes of explosive behaviour, reaching from a few days to up to three months. Currency level changes seem to reverse subsequently. Periods of explosiveness since 2000 have often been related to the U.S. dollar and financial market volatility.

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Understanding negative inflation risk premia

May 13, 2017

Inflation risk premia in the U.S. and the euro area have disappeared or even turned negative since the great financial crisis, according to various studies. There is also evidence that this is not because inflation uncertainty has declined but because the balance of risk has shifted from high inflation problems to deflationary recessions. Put simply, markets pay a premium for bonds and interest rate swap receivers as hedge against deflation risk rather than demanding a discount for exposure to high inflation risk. This can hold for as long as the expected correlation between economic-financial performance and inflation remains broadly positive.

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Volatility risk premia in the commodity space

May 6, 2017

Volatility risk premia – differences between options-implied and actual volatility – are valid predictors for risky asset returns. High premia typically indicate high surcharges for the risk of changes in volatility, which are paid by investors with strong preference for more stable returns. For commodities volatility risk premia should have become a greater factor as consequence of their “financialization”. New evidence suggests that indeed volatility risk premia on commodity currencies have predictive power for subsequent commodity returns, while crude and gold premia have predictive power for other asset classes in accordance with the nature of these commodities. Since estimation of these premia takes some skill and judgment this points to opportunities for macro trading with econometric support.

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Building international financial conditions indices

April 29, 2017

IMF staff has developed global financial conditions indices for 43 global economies. Conceptually, these indices extract the communal component of range of indicators for local financing conditions, independent of economic conditions. The idea looks like a good basic principle for building FCIs for macro trading strategies. The research on these indices suggests that [1] financial conditions are a warning sign for recessions, and [2] global financial shocks have a powerful impact on local conditions, particularly in the short run and in emerging economies.

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The global effects of a U.S. term premium shock

April 22, 2017

Empirical research suggests that shocks to U.S. treasury term premia have had a persistent subsequent impact on term premia in other developed and emerging fixed income markets. Global financial integration and inflation seem to increase the sensitivity of non-U.S. markets. A 200bps rise in the U.S. premium from current compressed levels could boost the term premia in other countries between 50 and 175 basis points. Hence, a U.S. shift towards reflationary policies or greater net supply of long-term treasuries could greatly increase borrowing costs around the world, exposing weaknesses in overleveraged economies and sectors.

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Watching U.S. financial conditions

April 15, 2017

The U.S. financial system wields dominant influence over the national and global economies. Moreover, securities and derivatives markets play a greater role relative to banks and compared to other developed countries. Medium-term shifts in financial conditions, rather than short-term changes, should be consequential for economic growth and monetary policy. Therefore, a timely and consistent measurement of U.S. financial conditions is crucial for macro trading strategies. A broad econometric measure of U.S. financial conditions based on risk, liquidity and leverage is produced and regularly updated by the Chicago Fed.

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Nowcasting GDP growth

April 8, 2017

Financial markets have long struggled with tracking GDP growth trends in a timely and consistent fashion. However, over the past decade statistical methods for “nowcasting” various economies have improved considerably, benefiting macro trading strategies. Dynamic factor models have become the method of choice for this purpose: they extract the communal underlying factor behind timely economic reports and translate the information of many data series into a single underlying trend. The estimation process may look daunting, but its basics are intuitive and calculation is executable in statistical programming language R.

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FX carry trade crashes

March 25, 2017

A global historical analysis of FX carry trades shows positive long-term performance but a negative skew of returns. Large drawdowns have been associated with global financial stress. This supports the view that FX carry returns are to some extent a premium for undiversifiable risk. FX carry trade crashes have been diverse in duration and size, exceeding 2 years and 30% in extreme episodes. Historically, high carry and positive valuation metrics have shortened the duration of sell-offs in FX carry portfolios. Financial stress in the developed world has prolonged the duration of drawdowns of developed market FX carry trades.

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asset management Asset Purchase Program banks bond returns bond yields bubbles capital regulation carry China collateral commodities credit returns default ECB economic data EM equity returns euro area crisis Fed financial crisis FX FX interventions FX returns government debt government deficits herding inflation information insurances Japan leverage liquidity machine learning market turmoil price factors regulation risk management shadow banking statistical methods term structure trend following variance risk premium VIX volatility ZLB
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