Equity indexes have been on a roll, repeatedly hitting new highs lately. Each new all-time high inevitably stirs talk of stretched valuations. The assumption is that valuations are bound to some long-term average—and will necessarily revert. We have a different take.

We find historical comparisons less useful in a world of structurally lower interest rates—and believe it’s important to rethink returns. This is just one of the three investing themes my BlackRock Investment Institute colleagues and I see shaping economies and markets in the fourth quarter, as we write in our new Global Investment Outlook Q4 2017.

Theme 1: Sustained expansion

A broadening of steady growth beyond the U.S. gives us confidence the global expansion is sustainable. Roughly three-quarters of countries are clocking up growth, and we see the global expansion chugging along at an above-trend pace. Drops this year in developed market (DM) bond yields and the U.S. dollar were unexpected given the robust growth backdrop. We see potential for rebounds in both as U.S. inflation firms and the Federal Reserve (Fed) presses on with removing monetary accommodation. Note we do see inflation moving sideways at low levels in the eurozone, even as we expect inflation to pick up in the U.S. These contrasting inflation outlooks suggest further monetary policy divergence is ahead (read more on this divergence and its investing implications in our recent post Opportunities emerge as central banks diverge.).

We do not see the U.S. economic expansion getting long in the tooth. Some slack remains in the economy—even as the jobless rate touches levels rarely seen since the 1950s. Slower growth—a function of structural changes such as an aging society—means economic slack created in the last recession is being eroded at a sluggish pace. Our work suggests the expansion can run for much longer—likely years—until the economy reaches potential and then the peak that marks the end of the cycle.

A sustained expansion supports company earnings growth, we believe. All major regions are posting earnings-per-share growth higher than 10% for the first time since 2005, excluding the post-crisis bounce, our research shows. Analyst forecasts are holding steady in the U.S. and Europe, Japan is up and emerging market (EM) earnings expectations have almost doubled this year. See the chart below.

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These trends give us comfort taking risk in stocks. We like the momentum and value style factors. Momentum has historically outperformed the broader market except in cases of recession or financial crisis, our work suggests. And increased confidence in the recovery could add fuel to a budding recovery in value, the cheapest companies across sectors.

Meanwhile, monetary policy makers are taking confidence from a sustained global expansion. Monetary stimulus in the U.S. is set to decelerate, possibly faster than markets expect. We see upside in yields as attention returns to the Fed and some other central banks gradually remove policy accommodation, though structural factors such as aging populations and strong demand for income limit upward moves.

Theme 2: Rethinking returns

We expect future returns to look different from the past, partly due to structurally lower interest rates. As a result, we do not see equity valuation metrics falling back to historical averages. Viewed through this lens, equity valuations are not that extreme, we believe. Overall, we believe investors are being paid to take risk, and we prefer equities over fixed income. We like European, Japanese and EM shares, as well as the factors we mention above.

Theme 3: Rethinking risk

Spotting systemic risks in advance is difficult, but we see none on the immediate horizon that might undercut the current economic expansion. Market volatility (vol) has been testing lows, but low-vol regimes are the historical norm, not the exception, we find. At this point, we do not spot broad signs of “irrational exuberance” in financial markets today.

We favor taking advantage of temporary equity market selloffs in the current environment of low volatility and solid corporate earnings. What if a market shock were to morph into a systemic crisis? Buying on the dip only works if the investor takes a long view and has a stomach for volatility. Patience eventually was rewarded after the 2008 crisis—but it took six volatile years to claw back losses from the 2007 peak. Persistence will remain a key feature of markets going forward, as will the reach for yield, we believe.

What are the risks to our outlook? Policy missteps or miscommunications cannot be ruled out as the Fed and some other central banks reduce accommodation. China’s economy could slow if the country re-emphasizes reforms over short-term growth after a crucial party congress in late October. Geopolitical risks also lurk. But we see few triggers that could shock markets out of their low-vol regime reinforced by steady growth. Read more, including our detailed market views, in the full Global Investment Outlook Q4 2017.

Richard Turnill is BlackRock’s global chief investment strategist. He is a regular contributor to The Blog.

More from BlackRock:

Emerging market valuations call for pause

Where we see investing opportunities now

What’s behind the run-up in emerging market bonds?

Investing involves risks, including possible loss of principal. International investing involves special risks including, but not limited to currency fluctuations, illiquidity and volatility. These risks may be heightened for investments in emerging markets. Fixed income risks include interest-rate and credit risk. Typically, when interest rates rise, there is a corresponding decline in bond values. Credit risk refers to the possibility that the bond issuer will not be able to make principal and interest payments.

This material is not intended to be relied upon as a forecast, research or investment advice, and is not a recommendation, offer or solicitation to buy or sell any securities or to adopt any investment strategy. The opinions expressed are as of October 2017 and may change as subsequent conditions vary. The information and opinions contained in this post are derived from proprietary and nonproprietary sources deemed by BlackRock to be reliable, are not necessarily all-inclusive and are not guaranteed as to accuracy. As such, no warranty of accuracy or reliability is given and no responsibility arising in any other way for errors and omissions (including responsibility to any person by reason of negligence) is accepted by BlackRock, its officers, employees or agents. This post may contain “forward-looking” information that is not purely historical in nature. Such information may include, among other things, projections and forecasts. There is no guarantee that any forecasts made will come to pass. Reliance upon information in this post is at the sole discretion of the reader.

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