Cooler heads will prevail despite the steady ramp-up of rhetoric on trade tariffs, the founder of New York-based consultancy High Frequency Economics believes.

Finance ministers of the world's wealthiest nations will meet at the G-7 summit Friday in Quebec, and it is likely to be rife with awkwardness. In addition to the U.S., the G-7, or Group of 7, consists of Canada, France, Germany, Italy, Japan and the U.K. — all countries that have been hit by the Donald Trump administration's sweeping tariffs on steel and aluminum exports.

And they are not happy about it. Since last week, the European Union (EU), Canada and Mexico have announced retaliatory tariffs on American goods, continuing along a trajectory many economists fear will lead to an all-out trade war.

But speaking to CNBC on Thursday, Carl Weinberg, the consultancy's chief economist, threw water on those fears.

"Our view is that wiser heads are going to prevail, the adults in the room are going to prevail, and that the Trump approach to trade is perhaps unsophisticated and doesn't fully encompass all the issues that are on the table," Weinberg said. He described the current tiff as Trump's strategy of trying to negotiate a hard deal and then backing down.