LAS VEGAS -- Although business investment has slowed due to uncertainty over fiscal negotiations in Washington, the economy is not in any imminent danger of sliding into a recession, said economist Bob Dieli during Heavy Duty Aftermarket Dialogue Monday the day before Heavy Duty Aftermarket Week.

He noted that the business cycle goes through expansion, boom, peak, recession, trough, recovery, and then expansion again. We actually are in the early stages of expansion, said Dieli, president and founder of RDLB Inc, an economic research and management consulting firm baed in Lombard, Ill.

"Recovery is the most difficult phase of the cycle," Dieli told a crowd at the Fator Theater at the Mirage. "You have positive news and negative news, which leads some people to believe there is no such thing as a recovery."

The National Bureau of Economic Research is the arbiter of recessions, and it says we are not in one, Dieli said and if you look at their website, they hint that they don't think we are going to be in one.

"The word recession today is like ringing the doorbell in a house with a dog," Dieli said. "Every time someone says recession, you get distracted. The likelihood of a recession in the near term is quite low."

"In the absence of an imminent recession, the best assumption to make it that we will continue to make forward progress." Sustained downturns, he said, "only occur with the active cooperation of the Federal Reserve. And they are not acting like they want to start a recession. Just the reverse."

Dieli pointed to two key economic indicators that are a good indicator of the business cycle: Total nonfarm payroll employment, and truck transportation payroll employment.

Looking at nonfarm employment, Diesi noted, "We lost almost 9 million jobs over the course of the recession, which put us back to the same level of employment we had in July of 1999. We're not recovering from just one recession; we're getting to do over everything we did following the 2001 recession. That's another reason this new normal feels so different."

We have been adding jobs since the end of the recession, he noted; we now have made it back to July of 2005.

Truck transportation employment drops fairly significantly during recessions, Dieli explained. Between January 2007 and March 2010, trucking lost 218,000 jobs, a decline of 15%. That's more than double total employment numbers, which dropped by 6%.

MacKay & Co. has another indicator it calls Truckable Economic Activity. Right now it's running at close to 5% year over year, which is consistent with a recession recovery.

One of the most important factors that will affect the growth of TEA and the general economy this year, Dieli said, is investment. "It's at 90% of where it was at the cycle peak and where we think the fiscal cliff is having the most impact," he says. "Investment plans have been put on hold as we wait for the government to make up its mind. We're not sure they ever will, and we're not sure if we will be pleased when they do."

So why doesn't it feel like we're out of the recovery?

The U.S. economy simply does not grow a fast as it once did, Dieli said. From the mid '50s to the '80s, the nominal gross domestic product grew at an average rate of 7.9%.

"In the early '80s, two things happened," Dieli explained. "The Federal Reserve became much less tolerant of inflation. But the more important changes came with deregulation of trucking, of the railroads, of the airlines, of the energy sector, of the telecommunications sector. And this began to change the way the economy worked at a very fundamental level."

In addition, he said, the housing market crash was unlike anything in previous recessions. And stubborn long-term unemployment, expected to maybe be down to 6% by the end of 2015, is another factor.

The stock market, Dieli said, is the absolute worst way to try to predict what the economy will do. "The stock market has correctly predicted 14 of the last nine recessions," he quipped.

Heavy Duty Aftermarket Dialogue was put on by the Heavy Duty Manufacturers Association and MacKay & Co.