WASHINGTON, July 27—The U.S. economy expanded at an annualized 4.1 percent rate during the second quarter of 2018—the fastest rate of quarterly growth since the second quarter of 2014, according to an Associated Builders and Contractors analysis of U.S. Bureau of Economic Analysis data released today.

Nonresidential fixed investment represented an especially important element of second quarter strength in the advance estimate. While overall fixed investment expanded at a 5.4 percent annualized pace, nonresidential fixed investment grew 7.3 percent. The nonresidential sub-component exhibiting the most upward force was structures, which grew at a 13.3 percent annualized pace and by 13.9 percent during the year’s initial quarter. 

Today’s data release helps explain why nonresidential contractors continue to report hefty backlog and scramble for human capital. By contrast, the residential segment, which continues to be impacted by rising mortgage rates and the lowest level of housing affordability in a decade, contracted at a 1.1 percent annualized rate and has now shrunk during three of the previous four quarters.

“It is quite remarkable that an economy now in its 10^th year of economic expansion is actually gaining steam,” said ABC Chief Economist Anirban Basu. “A host of forces are at work, including elevated levels of confidence among business owners, developers and others who drive investment in America. Meanwhile, the consumer, supported by the strongest labor market in about two decades, continues to reliably contribute to economic growth. The result is an economy that is now on its way to a potential 3 percent growth year.

“As always, there are reasons to temper optimism,” said Basu. “Some of second quarter growth was driven by aggressive purchases of American output (e.g. soybeans) in advance of the imposition of retaliatory tariffs. That helped bulk up exports, but that pattern may not continue during the third quarter. The rapidly expanding economy is also serving to exacerbate inflationary pressures, which in turn are likely to drive borrowing costs higher. In other words, today’s strong economic growth may translate into weaker economic growth at some point in the future, and there is plenty of precedent for such a dynamic.

“Contractors can rest assured that the economy will retain its momentum through the balance of the year,” said Basu. “While financial markets may remain volatile and the global news cycle will undoubtedly continue to swirl, leading indicators, including those related to the level of observable activity among engineers, architects and other design professionals, suggest that another wave of building construction is on the way. The tax cuts passed late last year are just now beginning to have an impact. The hope is that tax reform will trigger a structural shift in the U.S. economy by helping to expand productivity and the economy’s long-term growth potential.The other possibility is that the tax reform’s primary effects will be to lift short-term growth, expand federal budget deficits, and ultimately give way to a countervailing reform at some point in the future.”