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Jun Kyung Auh

Yonsei University · Economics, Econometrics and Finance

About the Lab

Professor Jun Kyung Auh's research lab specializes in corporate finance, fixed income markets, and financial stability, with a focus on credit risk, securitization, and the impact of macroeconomic and climate-related shocks on financial instruments. The lab investigates how institutional frictions, rating policies, and structural features of debt markets affect risk pricing, investor behavior, and firm financing decisions. A central theme is the interplay between financial innovation, risk management, and systemic vulnerabilities, particularly in times of crisis or environmental stress. The lab employs advanced econometric methods and alternative data sources to study real-world market dynamics, including municipal bonds, corporate debt, and repo markets.

corporate financefixed incomecredit riskclimate riskfinancial stability

Research Overview

Papers
28
Total Citations
137
Papers (5y)
17
Primary Field
Economics, Econometrics and Finance

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
17total
2020
2021
2022
2023
2024
Citations per year (5y)
102total
20202021202220232024

Selected Papers

15
1
Article|29 citations·2022
Loan Terms and Collateral: Evidence from the Bilateral Repo Market
Jun Kyung Auh, Mattia Landoni
SJR Q1The Journal of Finance

ABSTRACT We study secured lending contracts using a proprietary, loan‐level database of bilateral repurchase agreements containing groups of simultaneous loans backed by multiple tranches within a securitization. We show that lower‐quality loans (i.e., loans backed by lower‐rated collateral) have higher margins and spreads. We calibrate a model using collateral asset prices and find that lower‐quality loans are riskier despite the higher margins, yet cheaper for the borrower. This finding is con

FinanceEconomics, Econometrics and Finance
2
report|20 citations·2022
Natural Disasters and Municipal Bonds
Jun Kyung Auh, Jaewon Choi, Tatyana Deryugina, Tim Park
National Bureau of Economic ResearchOA

Climate change is increasing the frequency of natural disasters, which could make municipal bonds a riskier asset class. We study the effects of natural disasters on municipal bond returns, exploiting the repeat sales approach to overcome the challenge that municipal bonds trade extremely infrequently. We find substantial price effects that materialize gradually: returns of uninsured bonds fall slowly in the weeks following a disaster, by 0.31% on average, translating into investor losses of alm

Economics and EconometricsEconomics, Econometrics and Finance
3
report|18 citations·2020
Cross-Asset Information Synergy in Mutual Fund Families
Jun Kyung Auh, Jennie Bai
National Bureau of Economic ResearchOA

Despite common wisdom that equities and bonds are segmented, the organization structure of fund families can offset frictions regarding cross-asset segmentation. We find that activelymanaged equity funds and corporate bond funds linked within a mutual fund family exhibit a significant co-movement in holdings of commonly-held firms' equities and bonds. Such crossholdings facilitate information spillover, manifesting itself in the co-movement. Synthesizing cross-asset information can predict futur

FinanceEconomics, Econometrics and Finance
4
Article|12 citations·2015
Procyclical Credit Rating Policy
Jun Kyung Auh
SSRN Electronic JournalOA
FinanceEconomics, Econometrics and Finance
5
Article|9 citations·2022
Natural Disasters and Municipal Bonds
Jun Kyung Auh, Jaewon Choi, Tatyana Deryugina, Tim Park
SSRN Electronic JournalOA
Economics and EconometricsEconomics, Econometrics and Finance
6
Article|9 citations·2013
Bankruptcy Code, Optimal Liability Structure and Secured Short-Term Debt
Jun Kyung Auh, Suresh Sundaresan
SSRN Electronic JournalOA
FinanceEconomics, Econometrics and Finance
7
Article|7 citations·2023
Factor-based portfolio optimization
Jun Kyung Auh, Wonho Cho
SJR Q2Economics Letters
Management Science and Operations ResearchDecision Sciences
8
Article|5 citations·2018
Cross-Asset Information Synergy in Mutual Fund Families
Jun Kyung Auh, Jennie Bai
SSRN Electronic JournalOA
FinanceEconomics, Econometrics and Finance
9
Article|5 citations·2023
Procyclical Credit Rating Policy*
Jun Kyung Auh
SJR Q3Asia-Pacific Journal of Financial StudiesOA

Abstract This paper examines whether credit rating agencies applied consistent rating standards to US corporate bonds in the periods surrounding the 2008 financial crisis. Based on estimates of issuing firms' credit quality from a structural model, I find that rating standards are in fact procyclical: ratings are stricter during an economic downturn than during an economic expansion. As a result, firms receive overly pessimistic ratings in a recession, relative to during an expansion. I further

FinanceEconomics, Econometrics and Finance
10
Article|5 citations·2021
Natural Disasters and Municipal Bonds
Jun Kyung Auh, Jaewon Choi, Tatyana Deryugina, Tim Park
SSRN Electronic JournalOA
Economics and EconometricsEconomics, Econometrics and Finance
11
Article|5 citations·2020
Repo Priority Right and the Bankruptcy Code
Jun Kyung Auh, Suresh Sundaresan
SJR Q1Critical Finance Review

This paper shows that when the bankruptcy code protects the creditors’ rights with no impairments to secured creditors, issuance of debt such as repo with exemption from automatic stay adds no value. When the bankruptcy process admits violations of absolute priority rules or results in collateral impairments to secured creditors, the liability structure includes short-term debt, with safe harbor protection when the pledged collateral satisfies a minimum liquidity threshold. Safe harbor rights

AccountingBusiness, Management and Accounting
12
Article|4 citations·2015
The Role of Margin and Spread in Secured Lending: Evidence from the Bilateral Repo Market
Jun Kyung Auh, Mattia Landoni
SSRN Electronic JournalOA
FinanceEconomics, Econometrics and Finance
13
Article|3 citations·2018
Tricks of the Trade? Pre-Issuance Price Maneuvers by Underwriter-Dealers
Jun Kyung Auh, You Suk Kim, Mattia Landoni
SSRN Electronic JournalOA
AccountingBusiness, Management and Accounting
14
Article|2 citations·2024
Understanding Corporate Bond Defaults in Korea Using Machine Learning Models*
Dojoon Park, Jun Kyung Auh, Giwan Song, Young Ho Eom
SJR Q3Asia-Pacific Journal of Financial StudiesOA

Abstract We investigate corporate bond defaults from 1995 to 2020 using hand‐collected data from hard‐copy publications in Korea. Using an under‐sampling method, we construct default prediction models based on machine learning models as well as a logistic model. The empirical results show that the random forest model outperforms the others. However, regardless of the models used, model performance in financial crisis periods is significantly worse than it is in non‐crisis periods. This finding s

AccountingBusiness, Management and Accounting
15
Article|2 citations·2013
Real Effect of Cost of Financing
Jun Kyung Auh

This paper quantifies the causal effect of borrowing cost on firms’ investment decisions. To overcome the empirical challenge due to a possible reverse causality where firms’ investment prospects affect their borrowing costs, I apply an instrumental variable methodology where the identification comes from insurance companies’ regulatory constraints regarding the credit rating of their bond holdings. Rating-based regulatory constraints are more binding for insurers with a weaker capital position.

Economics and EconometricsEconomics, Econometrics and Finance

Research Areas

FinanceEconomics and EconometricsAccountingOcean EngineeringManagement Science and Operations ResearchAerospace Engineering

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