U.S. business inventories rose a scant 0.1% in March 2008 (pdf), the U.S. Commerce Department announced Tuesday -- the smallest inventory rise in a year.

Economists surveyed by Bloomberg News had expected March 2008 inventories to rise 0.5%.

Also, the March 2008 inventory-to-sales ratio declined to 1.27. Meanwhile, the February 2008 business inventory statistic was revised higher to an increase of 0.2%.

Inventories: Two-sided stat

Economist David H. Wang told BloggingStocks Tuesday the March 2008 inventory data can be interpreted two ways, with positive and negative dimensions.

On the one hand, businesses are keeping inventories at a bare minimum -- a fact that typically is bearish, short-term, for the U.S. economy, Wang said. "It can reflect a lack of business confidence in the economy's ability to grow in the short run," he said.

On the other hand, those same lean inventories mean that any sustained increase in demand will require businesses to ramp-up production quickly -- a phenomenon that generally limits the length of a recession / economic downturn, Wang said.

Another positive dimension to lean inventories: companies will not have to trim as many employees if the U.S. economy slows further. "In all, this month's inventory report contained a lukewarm stat," Wang said. "The best aspect of it is, businesses are prepared for a further downturn in the economy, should it occur."