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Paper KR

Governance Predicts ROE: Evidence from 2,100 Korean Listed Firms

Empirical linkage between the TBR framework and operating performance across the full KOSPI and KOSDAQ universe, with positive Q5-minus-Q1 ROE spreads in every period tested.

Paper JP

G-Score Japan: Governance Quality Predicts Market Valuation

Cross-sectional validation of the TBR framework across 1,576 Tokyo Stock Exchange Prime issuers, testing five hypotheses on governance, valuation, and concentration risk.

Case Study KR

Kwangmyung Electric (광명전기): Pre-Failure Detection

Retrospective validation of a Grade D + Chameleon classification issued before the audit opinion rejection and delisting initiation announced on April 7, 2026. Score trajectory and archetype behavior documented end-to-end.

Research Note Cross-market

Why the R-axis Carries the Largest Weight

Axis-level ablation across live markets consistently identifies conflict-of-interest exposure as the strongest single predictor of governance failure. Calibration reasoning behind the TBR v2.0 weight distribution.

Research Note Cross-market

The Chameleon Archetype Across Eight Markets

In most Asian markets, Chameleon-classified issuers present as board-weak — reflecting the structural challenge of substantive independence under controlling-shareholder regimes. Hong Kong and India diverge on distinct axes.

Research Note Cross-market

Kill Switch vs. Grade D: Two Distinct Risk Categories

Why Apex separates the Kill Switch watchlist from the S/A/B/C/D grade scale. Kill Switch isolates structural red flags with independently elevated distress odds; Grade D captures general governance underperformance.

Research Note KR

KOSDAQ Excluded Cohort: A −33% Return Spread

Back-tested comparison between the G-Score Excluded cohort (Kill Switch plus Time Bomb archetypes) and the Alert cohort on KOSDAQ, with a 46-percentage-point volatility differential.

Research Note SG

Hyflux: A Two-Year Early-Warning Precedent

Retrospective G-Score trajectory for Hyflux ahead of its 2018 distress. Illustrates how the Kill Switch framework identifies structural red flags in advance of financial deterioration for Singapore REIT-adjacent listings.

Market Update KR

Korea Q1 2026: Grade Distribution and Watchlist Rotation

Quarterly summary of the Korean scoring universe: aggregate grade distribution, Kill Switch cohort changes, and archetype migration across the KOSPI and KOSDAQ segments.

Market Update JP

Japan Q1 2026: TSE Prime-Tier Scoring Completion

First full-coverage update on the Prime segment: grade distribution, Celestial concentration on the Prime tier, and the relationship between cross-shareholding depth and composite scores.

Market Update HK

Hong Kong Q2 2026: H-share and VIE Structural Exposure

In preparation. Controlling-shareholder pledge concentrations, VIE opacity markers, and single-day crash likelihood on the Kill Switch watchlist across the HKEX universe.

Market Update IN

India Q2 2026: Promoter Pledge Unwinding and Auditor Turnover

In preparation. BSE/NSE coverage: disclosure-axis pathology, promoter pledge concentrations, and auditor resignation patterns observed across the first two quarters of 2026.

Quick Take KR

Field Notes from ICGN Korea 2026

A short reflection on the conference discussions and how the empirical grade distribution visible in the Korean scoring universe complements ongoing governance-reform efforts in the market.

Quick Take Cross-market

The Governance Signal Leads the Financial Signal

A brief synthesis of the core Apex thesis: across every market validated to date, degradation in the TBR axes appears in filings before it appears in financial statements.

Quick Take KR

The Audit-Rejection-to-Receivership Cascade

A short note on the observed Korean pattern — audit opinion rejection preceding receivership filings by a consistent multi-quarter sequence — and why the Kill Switch Going-Concern-Cascade category isolates this progression.

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Publication Formats

Five formats.
One research program.

Each format serves a different reader — peer reviewers, portfolio managers, policy researchers, market observers. Depth and cadence scale accordingly.

20 – 40 pages
Paper
Peer-review-track empirical research. Academic infrastructure (SSRN, CGIR, International Review of Financial Analysis targets). Full reproducibility trail, sector-level validation tables.
5 – 10 pages
Research Note
Rigorous analytical pieces on a single finding or methodology decision. Published directly on Apex. No peer review, full citation discipline, aggregate-level results only.
3 – 6 pages
Case Study
Deep dive on a single issuer. Score trajectory, archetype transitions, and — where applicable — retrospective validation against disclosed distress events.
2 – 4 pages
Market Update
Quarterly per-country summary: grade distribution, watchlist rotation, archetype migration. Regular cadence for each covered market.
200 – 500 words
Quick Take
Flash commentary on a specific event, filing, or market development. Mirrored to Substack for distribution; Apex remains canonical.
Distribution

Published on Apex.
Mirrored across channels.

Apex G-Score is the canonical publisher. Papers and notes appear on academic and reader-facing channels under matching canonical tags pointing back to apexgscore.com.

Academic

SSRN & Peer-Reviewed Journals

Papers post to SSRN under review, then proceed to Corporate Governance: An International Review, International Review of Financial Analysis, and adjacent outlets. Replication packs available to reviewers on request.

SSRN profile →
Reader Distribution

Apex Substack

Research Notes and Quick Takes cross-post to Substack with rel="canonical" pointing back to apexgscore.com. Weekly English cadence with a supplementary Korean direct-email track for institutional contacts.

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Long-Form

The Governance Gap

The foundational book-length treatment of the thesis that grounds the Apex program — available on Amazon. The book predates the TBR codification; the research program extends and empirically validates its argument.

Amazon →