{"locations":[{"code":"USA","name":"United States","page":"https://macroscope.is/en/country/united-states/"}],"indicators":[{"id":"market_equity_index","title":"Equities: latest month (OECD)","unit":"2015 = 100"}],"from_year":1950,"to_year":2100,"sections":[{"id":"dyn","title":"How the indicators changed","items":[{"kind":"dynamics","indicators":["market_equity_index"],"text":"Equities: latest month (OECD): 2.28 2015 = 100 in 1957 → 226.1 2015 = 100 in 2026 (×99). The trend broke around 1986 and 2018: +0.24 → +3.1 → +13 a year.","data":{"indicator":"market_equity_index","from":1957,"to":2026,"first":2.2769,"last":226.1003,"breaks":[{"year":1986,"slope_before":0.235,"slope_after":3.07},{"year":2018,"slope_before":3.07,"slope_after":13.3}]}}]},{"id":"markets","title":"Markets: growth, falls and valuations","items":[{"kind":"market_dated_month","indicators":["market_equity_index"],"text":"The last selected point is 2026-09, the latest published month for that year, not a full-year average. Monthly observations and their source flags are available in the detailed dataset.","data":{"period":"2026-09","quality":"A","value":226.1003}}]}],"caveat":"Moving together in time does not prove a cause: incomes, cities, education and the era itself act on many indicators at once. These observations suggest where to look, not what causes what.","view_url":"https://macroscope.is/en/chart/?c=USA&i=market_equity_index&from=1950&to=2100&past=1","how_to_read":"text: a ready sentence with numbers; data: the same numbers for calculations. The first indicator is the focus the others are compared with. Relationships are checked in levels (r) and in year-to-year changes (r_changes: the changes have their own linear trend removed; significance corrected for autocorrelation); lag is the shift at which changes line up best. UN errors: actual / projected − 1 for population, births and fertility, actual − projected for migration, life expectancy and mothers' age; IMF: actual − forecast. view_url opens the same view on the site."}