{"iri":"https://lexicon.financial/business/bls/LaspeyresIndex","label":"Laspeyres index","definition":"Index that measures the change in some aspect of a group of items over time, using weights based on values in some base year.","license":"https://www.usa.gov/government-copyright","source":"bls","source_url":"https://www.bls.gov/bls/glossary.htm"}