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 recently released.

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 10th year of economic expansion is actually gaining steam,” says 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,” says 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."

Visit ABC Construction Economics for the Construction Backlog Indicator, Construction Confidence Index and state unemployment reports, plus analysis of spending, employment, GDP and the Producer Price Index.