Kerr, Sari Pekkala Pekkala Kerr, Sari 25549 2026-01-12 16:37:40 2026-01-12 16:15:10 naf viaf repec orcid wikidata author https://fraser.stlouisfed.org/author/sari-pekkala-kerr https://fraser.stlouisfed.org/api/author/25549