Was there any use of scoring rules in economics or finance before Hanson published about LMSR? Scoring rules arose in the field of meteorology, with the seminal paper published in 1950, but I can't find any references to their using in economics or finance until Hanson published in 2002. Half a century is a long time, so it seems unlikely that Hanson was the first to use scoring rules.

Is the problem just with my Google-fu or was Hanson actually the first? I'm betting on the former.
Hanson wasn't the first one.

"Scoring rules and the evaluation of probability assessors" by Winkler was published in the Journal of the American Statistical Association in 1969 wasn't published in an economics journal but already mentioned economic applications.

Other examples (probably also not the first publications in economics journals, but still earlier than Hanson) are:

Selten (1991), "Properties of a Measure of Predictive Success?" in Mathematical Social Sciences.

Selten (1998), "Axiomatic characterization of the quadratic scoring rule" in Experimental Economics.