{"title": "Incomes and Productivity in North America", "covers": [5112972], "key": "/works/OL8614591W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2896314A"}}], "type": {"key": "/type/work"}, "subjects": ["Labor productivity, united states", "Income, united states", "Free trade", "Congresses", "Income", "Labor productivity", "Productividad en el trabajo", "Congresos", "Renta, Distribuci\u00f3n de la", "Integraci\u00f3n econ\u00f3mica"], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2009-12-10T23:01:32.456619"}, "last_modified": {"type": "/type/datetime", "value": "2024-07-15T23:17:03.118841"}}