Permanent Capital Losses after Banking Crises

Layer 1 — Overview

Research Question

This paper investigates two interrelated questions about historical banking crises: (1) whether bank losses during banking crises are primarily temporary or permanent in nature, and (2) whether policy interventions — particularly liquidity-based interventions — are effective at restoring bank capitalization after such crises. The paper positions these questions against a theoretical divide: models stressing temporary price dislocations (binding borrowing constraints, depositor fragility, information frictions) versus models in which crises reflect fundamental and permanent deterioration in the value of bank assets.

Data and Methodology

The authors construct three new historical datasets spanning 46 economies from 1870 to 2019. The first is a country-level panel of annual and monthly bank and nonfinancial equity index total returns, building on Baron, Verner, and Xiong (2021). The second is an individual-bank-level dataset covering the ten largest banks per country across 17 economies (from Jordà, Schularick, and Taylor 2017), containing equity returns, balance sheet quantities, net income decomposed into write-downs and trading income, and equity issuance within ±5-year windows around each crisis. The third is a new database of the monthly starting dates of policy interventions — extraordinary central bank liquidity support, blanket liability guarantees, and government recapitalizations — extending the databases of Laeven and Valencia (2020) and Metrick and Schmelzing (2024).

Bank equity crises are identified using a real-time, data-driven indicator requiring: (1) a greater than 30% annual decline in the bank equity index and (2) the failure of a top-20 bank within the country. This definition yields 76 bank equity crises, nearly all of which overlap with prior narrative-based chronologies (Reinhart-Rogoff, JST, Laeven-Valencia), and results are robust to all alternative crisis definitions examined.

Main Findings

Permanent losses. In the year of a bank equity crisis onset, bank equity experiences average abnormal returns of -68 log-points (or -49% in arithmetic terms), while nonfinancial equity falls by -36 log-points (-30%). Over the subsequent five years, bank equity does not earn elevated returns relative to the country’s unconditional average — point estimates are consistently negative, and significantly so in years three and four after crisis onset. Bank equity does not recover to its pre-crisis level. By contrast, nonfinancial equity earns cumulative abnormal returns of roughly 30 log-points (35% arithmetic) over five years, recovering to pre-crisis trend, consistent with a discount-rate-driven decline for nonfinancial firms.

Earnings-driven, not discount-rate-driven. Panel regressions at both the country and individual-bank level show coefficients of roughly 1 to 2 on the relationship between the initial bank equity return in the crisis year and the subsequent five-year change in real dividends and real earnings. The initial equity decline thus predicts a roughly commensurate long-run decline in banks’ dividends and earnings, inconsistent with the temporary-loss view’s prediction of discount-rate-driven declines that should subsequently reverse.

Short-run bounce-backs are modest and transient. At the monthly frequency, bank equity does rebound modestly from its trough — the bounce-back averages only about 30% of the initial decline, even assuming perfect market timing. This gain partially reverses after approximately twelve months, so cumulative five-year returns remain not elevated above the unconditional average.

Write-downs, not fire sales, drive losses. Realized book losses in the first year of crisis onset account for only about 30% of market-value losses — contrary to what fire-sale models predict. By year five, cumulative book losses reach roughly 35% of pre-crisis book equity and approximately 100% of market-value losses. Decomposing net income, write-downs track cumulative book losses closely and fully account for market-value losses by year five. Trading losses (from securities sales and asset dispositions) account for only a small share on average, though for banks in the top quartile of securities-to-assets ratios, immediate accounting losses are larger and more trading-loss-driven — consistent with fire-sale dynamics being important specifically for banks with large tradable securities portfolios.

Nonperforming loans confirm the mechanism. At the country level, larger bank equity declines are associated with higher peak NPL rates in the subsequent five years (adjusted R² of 0.53 excluding two outliers; 0.606 for the 2008-2010 subsample only). No analogous relationship exists for nonfinancial equity returns.

Policy interventions are insufficient. Liquidity-based interventions (extraordinary central bank support and blanket guarantees) implemented after bank equity crises are followed by an approximately 20% short-run rebound in bank equity, which reverses between months 12 and 36. No large or permanent increase in bank value follows. Government recapitalization programs have historically been small (averaging 24% of pre-crisis book equity and 43% of realized losses), narrow (65% classified as narrow, median of five banks recapitalized), and delayed. Banks cannot self-recapitalize through high post-crisis profitability.

Crisis type matters. Panic-only crises (banking panics without large bank equity declines, N=85) exhibit very different dynamics: bank equity recovers to pre-crisis levels within five years, dividends fall only temporarily, liquidity interventions produce large and permanent rebounds, and macroeconomic output losses are smaller. In 75% of bank equity crises, the bank equity decline strictly precedes the banking panic, indicating that fundamental weaknesses — not liquidity shocks escalating into solvency problems — are the primary driver. Only 19 cases (25%), labelled “mismanaged banking panics” (including the U.S. Great Depression), saw the panic precede the equity decline, mostly in the pre-1945 Gold Standard era. Early liquidity intervention is essentially a necessary condition for averting incipient crises, but it is effective only when a steep bank equity decline has not yet occurred.

Layer 2 — Q&A

Q1: How do the authors define a “bank equity crisis” and why does the definition matter for their empirical strategy?

A bank equity crisis is defined as the first year when (1) the bank equity index declines by more than 30% in annual excess total returns in any year within the past five years, and (2) a top-20 bank (ranked by assets) fails within the country. This purely data-driven, real-time definition avoids the look-ahead bias inherent in narrative-based chronologies. The authors identify 76 such crises. Results are robust to using Reinhart-Rogoff, JST, Laeven-Valencia, and 30%-decline-only definitions, alleviating concerns that the differential bank versus nonfinancial equity dynamics are mechanical artifacts of the crisis identification approach.

Q2: What is the quantitative magnitude of the initial equity shock to banks versus nonfinancial firms at crisis onset?

In the year of a bank equity crisis, the average abnormal cumulative log excess total return is -68 log-points for bank equity and -36 log-points for nonfinancial equity (corresponding to -49% and -30% in arithmetic abnormal returns, respectively). These are relative to the country’s unconditional average returns, estimated using country fixed effects in panel regressions.

Q3: Do bank stocks earn elevated returns after banking crises, as temporary-loss models predict?

No. Over the five years following crisis onset, bank equity point estimates of cumulative abnormal returns are consistently negative, and significantly so at years three and four. Bank equity does not recover to its pre-crisis level at any horizon out to five years (and Figure A.9 extends to ten years with similar conclusions). This pattern holds across advanced and emerging economies, before and after 1945, excluding the Global Financial Crisis, and across a variety of methods for computing abnormal returns. Even for surviving banks — excluding those that failed or exited — the pattern holds.

Q4: How do the earnings and dividend dynamics of banks versus nonfinancial firms differ after crises?

For banks, both real dividends per share and real earnings per share remain well below their long-term average five years after crisis onset, with no recovery visible by year five. For nonfinancial firms, dividends and earnings decline at crisis onset but rebound, though only slowly through year five. Panel regressions at both the country and individual-bank level find coefficients of approximately 1 to 2 on the relationship between the crisis-year bank equity return and the five-year-ahead change in real dividends and real earnings — indicating a roughly commensurate earnings-driven decline, not a transitory discount-rate shock.

Q5: What is the magnitude of the short-run bounce-back in bank equity, and does it represent a profit opportunity?

Even with perfect knowledge of the crisis trough (which is not available in real time), the rebound in bank equity from trough to peak averages only about 30% of the initial decline. This gain partially reverses within approximately twelve months, so that cumulative five-year abnormal returns remain not elevated above the unconditional average. Trading strategies that account for risk and factor returns (market, value, size, momentum, global equity) yield even lower risk-adjusted returns, strengthening the conclusion that bank equity is not cheap at crisis troughs.

Q6: How do write-downs compare to trading losses in explaining the accounting losses of banks during crises?

Realized book losses in the first year of crisis onset account for only about 30% of market-value losses. By year five, cumulative book losses reach approximately 35% of pre-crisis book equity and roughly 100% of market-value losses. Decomposing net income, write-downs (revaluations of assets remaining on the balance sheet — loan loss provisions, impairments, goodwill write-downs) track cumulative book losses closely and fully account for market-value losses by year five. Trading losses (realized gains and losses from securities trading and all asset sales) account for only a small share of total losses on average.

Q7: Under what conditions do fire sales rather than write-downs dominate the accounting losses?

For banks in the top quartile of the ratio of securities to total assets, immediate accounting losses in the first year of crisis onset are substantially larger and driven to a significant extent by trading losses rather than write-downs. The six bank equity crises with the highest securities-to-assets ratios (weighted across banks) all occurred during the 2007-2008 crisis (Belgium, France, Germany, Switzerland, the U.K., and the U.S.), when fire sales of securitized assets were significant. Banks holding mostly loans (bottom quartile of securities-to-assets) show slower-to-materialize book losses driven predominantly by write-downs.

Q8: How do nonperforming loan rates relate to the magnitude of bank equity declines across crises?

At the country level, more negative unlevered bank equity returns at crisis onset are statistically significantly associated with higher peak NPL rates over the subsequent five years. The adjusted R² for the full available sample is 0.233, rising to 0.533 after excluding two outliers (U.S. 1990, Sweden 1991). For the 2008-2010 crisis episodes only, the adjusted R² is 0.606. No analogous association between NPL rates and nonfinancial equity returns is found, suggesting the mechanism is specific to the banking sector’s asset-quality deterioration.

Q9: Do liquidity-based interventions (central bank support or blanket guarantees) restore bank capitalization after bank equity crises?

No. Following the implementation of liquidity-based interventions during bank equity crises, bank equity prices initially continue to decline for about two months, then rise by approximately 20%, but this gain reverses between months 12 and 36. Bank equity values remain persistently low thereafter. This is inconsistent with models in which forceful lender-of-last-resort interventions accomplish the same result as direct recapitalizations. The authors caution that interventions are not randomly assigned — deeper crises may receive stronger interventions — so the analysis cannot identify counterfactual outcomes.

Q10: What are the historical characteristics of government recapitalization programs?

Based on a new database covering all government recapitalization programs across 17 economies since 1870, recapitalizations have historically been small (averaging 24% of pre-crisis book equity and 43% of realized market-value losses), narrow (65% classified as narrow, with a median of five banks recapitalized), and delayed. Total equity issuance (government and private combined) is only a small fraction of realized losses. Government-funded issuance accounts for about one-fourth of total bank equity issuance. The U.S. TARP after 2008 was unusual in being both broad (over 700 banks) and timely (about one month after the Lehman collapse). Japan’s crisis of the 1990s is a prominent example of extreme delay, with the first recapitalization program implemented in March 1999, nearly a decade after the real estate collapse began.

Q11: How do “panic-only crises” differ from bank equity crises in terms of equity dynamics and policy effectiveness?

Panic-only crises (N=85) are banking panics without a 30% bank equity decline. They feature significant initial negative returns followed by elevated bank equity returns that bring valuations back to pre-crisis levels within five years. Dividends fall only temporarily. Liquidity interventions during panic-only crises produce a full rebound in bank equity in the month of intervention, contrasting sharply with the modest and transient response observed in bank equity crises. Panic-only crises are also associated with shallower real GDP declines and smaller bank credit contractions than bank equity crises.

Q12: In what fraction of bank equity crises does the bank equity decline precede the banking panic, and what does this imply about the root cause?

In 57 of the 76 bank equity crises (75%), the bank equity decline strictly precedes the emergence of the banking panic. This timing implies that most bank equity crises are not liquidity shocks that evolved into solvency problems — rather, fundamental weaknesses in the banking system are already present at the early stages of the crisis. Only 19 cases (25%), called “mismanaged banking panics,” saw the panic precede the equity decline; these occurred predominantly in the pre-1945 period, often in countries on the Gold Standard with limited central bank capacity.

Q13: Under what conditions can early liquidity interventions avert an incipient banking crisis?

Of 183 episodes of incipient liquidity shocks in which a prior 30% bank equity decline had not yet occurred, 126 received early liquidity interventions, of which 92 were successfully averted (approximately 50% of the original 183 episodes). The two strongest predictors of a successfully averted crisis — essentially necessary conditions — are: (1) the pre-panic bank equity decline remains below 30%, and (2) liquidity intervention occurs within one month of the panic. War outbreak and single-bank focus of the run are additional factors that substantially increase the probability of aversion. Combining the small-equity-decline and early-intervention conditions predicts averted panics with a true-positive rate of 99% (91/92), though with a 24% false-positive rate.

Q14: Does cross-sectional heterogeneity at the bank level confirm the permanent-loss interpretation?

Yes. Sorting the ten largest banks by country into five bins by market-to-book (M/B) ratio at crisis onset shows monotonic relationships with five-year outcomes. The most distressed banks (M/B below 0.2) experience reduced credit growth of 26 percentage points and reduced income-to-book-equity of 87 percentage points (both cumulative over five years) relative to the healthiest banks (M/B above 0.8). The M/B ratio at crisis onset is persistently low in subsequent years, because market values crash permanently while book values are sticky (slow write-down recognition). These results hold with crisis fixed effects, meaning the patterns reflect within-crisis cross-sectional variation, not merely crisis-level heterogeneity.

Q15: Do crises preceded by credit booms have worse post-crisis outcomes for banks?

Yes. Crises preceded by above-median growth in the credit-to-GDP ratio (from pre-crisis trough to peak) are associated with an additional 60 log-point abnormal decline in bank equity excess total returns occurring around year three after crisis onset, persisting through year five. By contrast, crises not preceded by credit booms earn bank equity returns similar to the country’s unconditional average after the initial decline. This supports the hypothesis that credit-boom-driven crises involve unexpected future deterioration in asset quality, possibly linked to persistently negative housing returns (which do not recover to pre-crisis levels within five years after banking crises).

Key Concepts

Bank equity crisis (paper-specific definition): An episode identified in real time when two criteria are jointly met for the first time: (1) the bank equity index declines by more than 30% in annual excess total returns within any year of the past five years, and (2) a top-20 bank (ranked by total assets within the country) fails. This definition is purely data-driven and does not require any look-ahead information. It produces 76 crises across 46 economies from 1870 to 2019.

Permanent-loss view: The theoretical interpretation that banking crises primarily reflect fundamental, lasting deterioration in the value of bank assets — arising either from fire sales that permanently destroy value or (more commonly in the authors’ evidence) from deterioration in asset quality (rising nonperforming loans, loan impairments). Under this view, bank equity declines are earnings-driven rather than discount-rate-driven and do not reverse even after funding and market liquidity are restored.

Temporary-loss view: The theoretical interpretation that bank losses during crises are primarily due to temporary price dislocations — assets held by financial intermediaries trade at sharp discounts due to binding borrowing constraints or depositor fragility, but recover their fundamental value once central banks provide liquidity support. Under this view, bank equity should earn elevated future returns after crises, and forceful liquidity interventions should be equivalent to direct recapitalizations in restoring bank value.

Write-downs (paper-specific definition): Revaluations of assets that remain on the balance sheet, reflecting expected future reductions in cash flows. They include loan loss provisions, additions to loan loss reserves, write-downs of fixed assets, and goodwill impairments. Distinguished from trading income (realized gains and losses from securities trading and all asset dispositions). Write-downs are subject to accounting discretion and are recognized slowly over multiple years after crisis onset, while equity markets price in expected total losses rapidly at crisis onset.

Trading income (paper-specific definition): Realized gains and losses from securities trading and all asset sales, including sales of real estate, loans, and subsidiary divisions. Unlike write-downs, trading losses must be recognized immediately (they are realized transactions), so large trading losses at crisis onset would be evidence consistent with fire-sale dynamics.

Panic-only crises: Banking panics (sustained bank runs or depositor withdrawals) that do not coincide with a greater-than-30% bank equity decline. Identified as N=85 in the full sample. These episodes are characterized by temporary equity declines, full recovery within five years, large positive responses to liquidity interventions, and smaller macroeconomic output losses — consistent with the temporary-loss view.

Mismanaged banking panics: The minority of bank equity crises (19 cases, 25%) in which the banking panic occurred first or concurrently with the 30% bank equity decline, rather than the equity decline preceding the panic. Concentrated in the pre-1945 period, often in Gold Standard countries with limited central bank flexibility. The U.S. Great Depression is the prominent example.

Averted crisis: An incipient liquidity shock to the banking sector that fully recedes within two months without any bank failures or 30% bank equity declines. Empirically, all averted crises in the sample had not yet experienced a 30% bank equity decline and all received early liquidity interventions (within one month of the incipient panic onset).