When more data is released this week showing the economic impact of the September 11th attacks, one Iowa expert thinks it won’t be so bad. The economy always goes up and down in good and bad times, according to University of Northern Iowa finance professor Arthur Cox. He says the economy’s been in good shape for some time and thinks that’ll continue as there’s been no fundamental or dramatic change in the past couple months.While some expect higher unemployment numbers to come out this week, Cox says he wouldn’t be concerned by a slight rise. He advises the public not to panic by listening to the gloom-and-doomers on T-V, but echoes federal leaders who say to continue living, and spending, as normal.But he says things really -aren’t- bad. He says people need to leave their investments where they are, not panic and continue spending money on their normal purchases and routines.