A University of Oregon index of leading economic indicators shows a 1.4% decrease in May.
The new findings suggest the state's economic recovery could slow.
Read more at OregonLive.com.
The index tracks activity ranging from unemployment claims to trucking activity. It rose last fall as conditions improved, but had flattened somewhat in the winter and spring.
In May, Oregon initial unemployment claims rose again and hiring by temp agencies -- whose fortunes tend to rise and fall ahead of the overall labor market -- dropped to the lowest level since December.