International Investment Arbitration: Publicly Available Awards, Critical Reasoning and Decision-Factor Clusters Dataset (1926–2022)
Description
This dataset compiles 75 publicly available investment arbitration awards, decisions, and settlements spanning 1926 to 2022, covering proceedings before the International Centre for Settlement of Investment Disputes (ICSID), Permanent Court of Arbitration (PCA), Stockholm Chamber of Commerce (SCC), London Court of International Arbitration (LCIA), and ad hoc UNCITRAL tribunals. Treaties covered include NAFTA Chapter 11, the Energy Charter Treaty, US and Canadian bilateral investment treaties, CAFTA-DR, European BITs, the OIC Investment Agreement, and foundational historical instruments including the PCIJ Statute and the US-Mexico General Claims Convention. The dataset is designed to support empirical research on the regulatory chill effect of investor-state dispute settlement on environmental, health, and climate regulation; the evolution of Fair and Equitable Treatment doctrine across treaty regimes; indirect and regulatory expropriation thresholds; the right to regulate in international investment law; environmental and human rights counterclaims by host states; and the incompatibility of the Energy Charter Treaty with climate transition obligations. Each of the 75 records contains 25 fields including: case name, parties, treaty basis, arbitral rules, institution, sector, measure type, year filed, year decided, award type, compensation claimed and awarded in USD, ratio of awarded to claimed (auto-calculated), outcome, treaty standards invoked, critical reasoning, decision-determinative factors cluster, dissenting opinion, annulment status, precedent value, and policy implication. The dataset's primary analytical contribution is a 12-factor decision-determinative taxonomy applied to every case: (1) Legitimate Expectations; (2) Police Powers/Right to Regulate; (3) Proportionality; (4) Investor Misconduct/Contributory Fault; (5) Abuse of Process/Treaty Shopping; (6) Necessity/Emergency Defence; (7) Environmental Regulation; (8) Indirect/Regulatory Expropriation; (9) Procedural Fairness/Due Process; (10) Valuation Methodology; (11) Intra-EU/ECT Compatibility; (12) Corporate Human Rights/Environmental Obligations. This taxonomy enables cross-case factor analysis of the determinants of arbitral outcomes. All awards sourced exclusively from italaw.com, official ICSID and PCA registries, and published ILM and ICSID Reports volumes. No proprietary database content reproduced. The Critical Reasoning, Factors Cluster, and Policy Implication fields are original scholarly analysis licensed under CC-BY 4.0.
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Steps to reproduce
Step 1 — Access the Primary Source Database Navigate to italaw.com, the principal free-access repository for international investment arbitration materials. The database is searchable by treaty, institution, respondent state, claimant nationality, sector, and outcome. No subscription is required. For cases not available on italaw, access the ICSID case registry directly at icsid.worldbank.org/cases, the PCA registry at pcacases.com, and published award series including International Legal Materials, ICSID Reports, and the UN Reports of International Arbitral Awards, Step 2 — Apply the Case Selection Criteria A case qualifies for inclusion where all three conditions are satisfied: (1) the proceeding is an investment arbitration under a bilateral or multilateral investment treaty, free trade agreement investment chapter, or intergovernmental claims convention; (2) the primary award, jurisdictional decision, or settlement terms are publicly available through open-access sources; and (3) the case involves a substantive determination on at least one of jurisdiction, merits, quantum, or annulment. Confidential awards are includable only where the award amount has been publicly reported through official tribunal press releases or verified reporting. Step 3 — Retrieve and Read the Full Award Text For each qualifying case, retrieve the full award or decision from the official source. Do not rely on headnotes, summaries, or secondary commentary for the extraction fields. The Critical Reasoning, Factors Cluster, and Standards Invoked fields must be derived from a close reading of the tribunal's own reasoning in the primary document. Where an award has multiple phases, read all phases before coding. Step 4 — Extract the Structured Fields From each award, extract the 25 dataset fields as defined in the Codebook. For monetary figures, record amounts as stated in the award. Convert non-USD denominations to USD using the IMF historical exchange rate at the date of the award, available at imf.org/en/Data under the IFS database. Record NULL for undisclosed amounts rather than estimating. Step 5 — Apply the 12-Factor Taxonomy For the Factors Cluster field, identify which of the 12 analytical clusters (defined in full in the Codebook and the Factor Clusters sheet) are decision-determinative in the tribunal's reasoning, meaning the factor was necessary to the outcome, not merely mentioned in passing. A case may attract multiple clusters. The taxonomy is applied to the tribunal's own reasoning, not to the arguments of the parties. Step 6 — Verify Currency of Annulment and Enforcement Status For each ICSID award, check the ICSID case registry for any annulment proceedings filed after the original award. For non-ICSID awards, check national court databases for set-aside proceedings . Update the Annulment Filed and Annulment Outcome fields accordingly. As of March 2025, several Spanish renewable energy awards and Yukos-related proceedings remain active.
Institutions
- American International University-BangladeshDhaka Division, Dhaka