Research

TFP panel - Penn World Table productivity series

Specialised view on Penn World Table Total Factor Productivity series. Returns a country-year panel restricted to productivity variables - by default the four headline TFP series: ctfp (TFP level at current PPPs, USA=1), cwtfp (welfare-relevant TFP level), rtfpna (TFP at constant national prices), rwtfpna (welfare-relevant TFP at constant national prices). Slice by country list and/or year list. Year list supports single years (2015,2020,2023) and ranges (2010-2023). Welfare-relevant TFP (cwtfp, rwtfpna) is a PWT-unique metric - not published by IMF, OECD, or the World Bank. Published under CC BY 4.0 with attribution to Penn World Table (Feenstra, Inklaar & Timmer, University of Groningen).

get/api/v1/research/pwt/tfp-panel

Query parameters

countriesstring nullable

Comma-separated ISO 3166-1 alpha-3 country codes (max 50). Omit for all countries.

yearsstring nullable

Comma-separated year list. Supports single years (2015,2020) and ranges (2010-2023). Omit for the full panel.

variablesstring nullable

Comma-separated TFP variable names. Defaults to ctfp,cwtfp,rtfpna,rwtfpna.

versionstring nullable

Release selector. pwt1100 (default) or pwt1001 (legacy).

Response

Country-year TFP panel with productivity variables.

Example response

{
  "data": {
    "version": "pwt1100",
    "variables": [
      "ctfp",
      "cwtfp",
      "rtfpna",
      "rwtfpna"
    ],
    "observations": [
      {
        "year": 2020,
        "countrycode": "USA",
        "country": "United States",
        "currency_unit": "US Dollar"
      }
    ],
    "count": 300
  },
  "meta": {
    "endpoint": "/api/v1/fred/us/cpi",
    "data_time": "2026-04-16T14:30:00Z",
    "response_time": "2026-04-16T14:30:12Z",
    "provider": "Sugra API v1.0.1",
    "data_age_days": 8.532,
    "source": "sugra_crypto",
    "attribution": "Short interest and Reg SHO daily short volume data is owned by and sourced from FINRA (Financial Industry Regulatory Authority).",
    "fallback_chain": [
      "sugra_crypto",
      "sugra_finance"
    ],
    "period": "2026-Q1",
    "notes": "the UKMTO report behind these counts is dated 2026-08-21 and is 11 days old"
  }
}

Changes

Changed in 2 of the 23 revisions of this API.15

Sep 1, 2026328d061c12ca3See the full diff
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  added the optional property meta/data_age_days to the response with the 200 status
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  added the optional property meta/period to the response with the 200 status
  response-optional-property-added
Aug 8, 20264c4530760ba112See the full diff
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  added the optional property code to the response with the 401 status
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  added the optional property code to the response with the 429 status
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  added the optional property code to the response with the 503 status
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  added the optional property hint to the response with the 401 status
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  added the optional property hint to the response with the 429 status
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  added the optional property hint to the response with the 503 status
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  added the optional property plan to the response with the 401 status
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  added the optional property plan to the response with the 429 status
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  added the optional property plan to the response with the 503 status
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  added the optional property reason to the response with the 401 status
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- ○
  added the optional property reason to the response with the 429 status
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  added the optional property reason to the response with the 503 status
  response-optional-property-added

Full history