## 1. Global Financial Conditions and Foreign Participation in EMs Government Bond Markets

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---

### Major themes
- Interaction between global financial conditions and foreign participation in emerging markets (EMs) government bond markets.
- International financial spillovers into EMs.
- Non-linear (PSTR) estimation of global financial spillovers into EMs.

### Introduction and scope
- Sample: quarterly data for 17 emerging market economies over 2004:Q1–2013:Q3. Countries: Argentina, Brazil, Colombia, Egypt, Hungary, India, Indonesia, Latvia, Lithuania, Malaysia, Mexico, Peru, Philippines, Poland, Romania, South Africa, and Thailand, and Ukraine.
- Research question: role of foreign participation and investor-base concentration in transmitting global financial shocks into EM government bond markets; comparison of local-currency (LC) versus foreign-currency (FX) sovereign bonds.
- Key global shock variables: U.S. 3 month t-bill rate (US3mt), U.S. 10-year Treasury bond rate (US10Y), and VIX (VIX).

### Empirical approach
- Dependent variables:
  - Level and volatility of the 5-year local currency yield.
  - EMBI benchmark foreign currency yield.
- Volatility measure: log of the standard deviation of weekly changes in the yield over each quarter (12 weeks).
- Foreign participation (F_it): foreign holdings measured as percent of total government local-currency (or foreign-currency) denominated government debt (data from Arslanalp and Tsuda (2014)).
- Investor-base concentration: Herfindahl index computed on 6 categories (foreign central bank, foreign bank, foreign non-bank, domestic central bank, domestic bank, domestic non-bank), normalized to range between 0 and 1.
- Controls (X_it): (i) current account balance to GDP; (ii) real GDP growth (or volatility of growth); (iii) inflation; (iv) forward exchange rate volatility. Country fixed effects and time effects included.
- Endogeneity addressed via:
  - instrumenting foreign participation with two quarter lags;
  - instrumenting with predicted foreign holdings from a geographical “financial remoteness” measure (natural log of great-circle distance to London, New York, or Tokyo).

### Key empirical findings — level and volatility of yields
- LC bonds:
  - Higher foreign participation increases yield volatility but decreases yield level.
  - Tables 2 and 4: positive association between foreign participation and LC bond yield volatility; significance appears when instrumenting foreign holdings with lags or remoteness-based instrument.
  - LC yield level: foreign holdings ratio coefficient (IV REMOTENESS IV) shows -0.0810*** (Table 4, column 3).
- FX bonds:
  - Foreign holdings of FX-denominated bonds are not found to have an impact on either the level or the volatility of FX bond yields (Tables 1 and 3).
- Macroeconomic fundamentals:
  - Higher indebtedness and higher output growth volatility increase yield volatility.
  - Higher real GDP growth decreases level and volatility of both LC and FX bond yields.
  - Higher inflation is positively associated with the level of bond yields.

### Transmission of global shocks conditional on foreign participation and investor concentration
- Model: interacted global shock variables (US3mt, US10Y, VIX) with indicators D that equal 1 if lagged foreign participation (or Herfindahl concentration) ≥ threshold D* (D ranges tested: 10 to 40 percent for foreign participation; 0.1 to 0.25 for concentration).
- Foreign participation thresholds and illustrative magnitudes:
  - Threshold around 30–35 percent amplifies transmission of global shocks.
  - When foreign holdings of LC bonds > 35 percent:
    - a 100 bps increase in U.S. 10-year yield results in an EM LC yield increase of around 140 bps (versus 40 bps below the 35 percent threshold).
  - Past 30 percent foreign participation:
    - a 100 bps increase in U.S. short-term interest rates increases EM yields by 140 bps (compared with no significant impact below the threshold).
  - Around 32 percent foreign participation:
    - a two-standard deviation shock in the VIX translates to a 130 bps increase in yields (compared to no significant impact below the threshold).
- Investor-base concentration (Herfindahl) threshold:
  - Threshold around 0.2:
    - a 100 bps increase in the U.S. 10-year yield raises LC sovereign yields by 70 bps when Herf > 0.2, compared with 30 bps when Herf ≤ 0.2.
- Non-linear coefficient evidence (Table 5):
  - U.S. 10-year yield * 1[FH>35]: 0.958*** (Column 1).
  - VIX * 1[FH>32]: 0.0692** (Column 2).
  - U.S. 3-month * 1[FH>30]: 1.332*** (Column 3).
  - U.S. 10-year yield * 1[Herf>0.2]: 0.385** (Column 4).

### Robustness: Panel Smooth Transition Regression (PSTR) results
- PSTR framework: smooth regime transitions via logistic transition function with parameters δ (threshold) and γ (smoothness).
- Tests reject linearity in favor of PSTR.
- Estimated thresholds broadly align with rolling-threshold results:
  - PSTR suggests foreign participation threshold close to 40 percent for some specifications (slightly higher than the 35 percent rolling-threshold).
  - Diversity (Herfindahl) threshold similar at 0.2.
- Transition characteristics:
  - Transition function smooth for U.S. 10-year effect.
  - Sharper transitions for US3mt, VIX, and diversity specifications.
- Conclusion: consistency of threshold ranges across methodologies is reassuring, though values are indicative.

### Limitations
- Absence of detailed data on the profile of foreign investors (retail vs institutional) holding LC government bonds limits generalization of thresholds.
- Most countries reached identified foreign participation thresholds after the global financial crisis; threshold results are thus heavily dependent on the post-crisis period.
- Endogeneity concerns addressed via lags and instruments, but remain an important consideration.

### Policy-relevant implications and recommendations
- Foreign participation effects:
  - Greater foreign participation in LC sovereign bond markets provides additional financing and lowers average yields but increases yield volatility.
  - No similar effect detected for FX-denominated sovereign bonds.
- Amplification and mitigation of spillovers:
  - High foreign participation (≈30–35 percent) amplifies transmission of global financial shocks (US short- and long-term rates; global risk aversion).
  - A more diversified investor base (Herfindahl below ≈0.2) attenuates shock transmission; policy efforts to broaden investor base and promote asset diversification could improve resilience.
  - Strong macroeconomic fundamentals (low inflation, strong and stable output growth, moderate public debt levels, higher international reserves) help reduce level and volatility of sovereign yields and dampen adverse spillovers.
- Practical considerations for policymakers:
  - Countries increasing reliance on foreign investors in LC markets have a stronger case for preserving prudent macroeconomic environments to insulate against external shocks.
  - Monitoring foreign participation shares (notably around 30–40 percent) and investor-base concentration metrics can inform financial-stability assessments and policy calibration.

*Source: _wp15141 - 1. Global Financial Conditions and Foreign Participation in EMs Government Bond (PDF).*

### 1. Global Financial Conditions and Foreign Participation in EMs Government Bond

### 1. Global Financial Conditions and Foreign Participation in EMs Government Bond Markets

### Major themes
- Interaction between global financial conditions and foreign participation in emerging markets (EMs) government bond markets.
- International financial spillovers into EMs.
- Non-linear (PSTR) estimation of global financial spillovers into EMs.

### Section breakdown (as presented)
- 1. Global Financial Conditions and Foreign Participation in EMs Government Bond Markets ______________________________________________________________13
- 2. International Financial Spillovers into EMs ____________________________________14
- 3. PSTR Estimates of Global Financial Spillovers into EMs _________________________15

### Tables listed
- 1. Foreign Holdings of FX Debt and Yield Volatility. Period 2004:Q1–2013:Q2 _________16
- 2. Foreign Holdings of LC Debt and Yield Volatility. Period 2004:Q1–2013:Q2 _________17
- 3. Foreign Holdings of FX Debt and FX Yield Level. Period 2004:Q1–2013:Q2 _________18
- 4. Foreign Holdings of LC Debt and LC Yield Level. Period 2004:Q1–2013:Q2 _________19
- 5. Panel Non-Linear Estimates ________________________________________________20

*Source: _wp15141 - 1. Global Financial Conditions and Foreign Participation in EMs Government Bond (PDF).*

### References  _______________________________________________________________21

### _wp15141 - References  _______________________________________________________________21

### Introduction and scope
- Sample: quarterly data for 17 emerging market economies over 2004:Q1–2013:Q3. Countries: Argentina, Brazil, Colombia, Egypt, Hungary, India, Indonesia, Latvia, Lithuania, Malaysia, Mexico, Peru, Philippines, Poland, Romania, South Africa, and Thailand, and Ukraine.
- Research question: role of foreign participation and investor-base concentration in transmitting global financial shocks into EM government bond markets; comparison of local-currency (LC) versus foreign-currency (FX) sovereign bonds.
- Key global shock variables used: U.S. 3 month t-bill rate (US3mt), U.S. 10-year Treasury bond rate (US10Y), and VIX (VIX).

### Empirical approach
- Dependent variables: level and volatility of the 5-year local currency yield and EMBI benchmark foreign currency yield.
- Volatility measure: log of the standard deviation of weekly changes in the yield over each quarter (12 weeks).
- Foreign participation (F_it): foreign holdings measured as percent of total government local-currency (or foreign-currency) denominated government debt (data from Arslanalp and Tsuda (2014)).
- Investor-base concentration: Herfindahl index computed on 6 categories (foreign central bank, foreign bank, foreign non-bank, domestic central bank, domestic bank, domestic non-bank), normalized to range between 0 and 1.
- Controls (X_it): (i) current account balance to GDP; (ii) real GDP growth (or volatility of growth); (iii) inflation; (iv) forward exchange rate volatility. Country fixed effects and time effects included.
- Endogeneity addressed via: (i) instrumenting foreign participation with two quarter lags; (ii) instrumenting with predicted foreign holdings from a geographical “financial remoteness” measure (natural log of great-circle distance to London, New York, or Tokyo).

### Key empirical findings — level and volatility of yields
- Behavior differs across markets:
  - LC bonds: higher foreign participation increases yield volatility but decreases yield level.
    - Tables 2 and 4: positive association between foreign participation and LC bond yield volatility; significance appears when instrumenting foreign holdings with lags or remoteness-based instrument.
    - LC yield level: foreign holdings ratio coefficients (IV REMOTENESS IV) show -0.0810*** (Table 4, column 3).
  - FX bonds: foreign holdings of FX-denominated bonds are not found to have an impact on either the level or the volatility of FX bond yields (Tables 1 and 3).
- Macroeconomic fundamentals:
  - Higher indebtedness and higher output growth volatility increase yield volatility.
  - Higher real GDP growth decreases level and volatility of both LC and FX bond yields.
  - Higher inflation is positively associated with the level of bond yields.

### Transmission of global shocks conditional on foreign participation and investor concentration
- Model specification: interacted global shock variables (US3mt, US10Y, VIX) with indicators D that equal 1 if lagged foreign participation (or Herfindahl concentration) ≥ threshold D* (D ranges tested: 10 to 40 percent for foreign participation; 0.1 to 0.25 for concentration).
- Threshold findings (baseline rolling-threshold and non-linear estimates):
  - Foreign participation threshold around 30–35 percent amplifies transmission of global shocks:
    - When foreign holdings of LC bonds > 35 percent, a 100 bps increase in U.S. 10-year yield results in an EM LC yield increase of around 140 bps (versus 40 bps below the 35 percent threshold).
    - Past 30 percent foreign participation, a 100 bps increase in U.S. short-term interest rates increases EM yields by 140 bps (compared with no significant impact below the threshold).
    - Around 32 percent foreign participation, a two-standard deviation shock in the VIX translates to a 130 bps increase in yields (compared to no significant impact below the threshold).
  - Investor-base concentration threshold around 0.2 (Herfindahl index):
    - A 100 bps increase in the U.S. 10-year yield raises LC sovereign yields by 70 bps when Herf > 0.2, compared with 30 bps when Herf ≤ 0.2.
- Non-linear coefficient evidence (Table 5):
  - U.S. 10-year yield * 1[FH>35]: 0.958*** (Column 1).
  - VIX * 1[FH>32]: 0.0692** (Column 2).
  - U.S. 3-month * 1[FH>30]: 1.332*** (Column 3).
  - U.S. 10-year yield * 1[Herf>0.2]: 0.385** (Column 4).
- Magnitude examples from narrative:
  - Past the 35 percent threshold, a 100 bps increase in the U.S. yields → ~140 bps rise in EM yields (vs. ~40 bps below threshold).
  - Past 30 percent threshold, a 100 bps increase in U.S. short-term rates → 140 bps increase in EM yields.
  - Two-standard deviation VIX shock at ~32 percent foreign participation → 130 bps increase in yields.

### Robustness: Panel Smooth Transition Regression (PSTR) results
- PSTR used to allow smooth regime transitions; transition function logistic with parameters δ (threshold) and γ (smoothness).
- Tests reject linearity in favor of PSTR.
- Estimated thresholds similar to rolling-threshold results:
  - PSTR suggests foreign participation threshold close to 40 percent for some specifications (slightly higher than the 35 percent rolling-threshold).
  - Diversity (Herfindahl) threshold similar at 0.2.
- Transition function smooth for U.S. 10-year effect; sharper transitions for US3mt, VIX, and diversity specifications.
- Conclusion: consistency of threshold ranges across methodologies is reassuring, though values are indicative.

### Limitations noted in the paper
- Absence of detailed data on the profile of foreign investors (retail vs institutional) holding LC government bonds limits generalization of thresholds.
- Most countries reached identified foreign participation thresholds after the global financial crisis; threshold results are thus heavily dependent on the post-crisis period.
- Endogeneity concerns addressed via lags and instruments, but remain an important consideration.

### Policy-relevant implications and recommendations
- Foreign participation effects:
  - Greater foreign participation in LC sovereign bond markets provides additional financing and lowers average yields but increases yield volatility.
  - No similar effect detected for FX-denominated sovereign bonds.
- Amplification and mitigation of spillovers:
  - High foreign participation (≈30–35 percent) amplifies transmission of global financial shocks (US short- and long-term rates; global risk aversion).
  - A more diversified investor base (Herfindahl below ≈0.2) attenuates shock transmission; policy efforts to broaden investor base and promote asset diversification could improve resilience.
  - Strong macroeconomic fundamentals (low inflation, strong and stable output growth, moderate public debt levels, higher international reserves) help reduce level and volatility of sovereign yields and dampen adverse spillovers.
- Practical considerations for policymakers:
  - Countries increasing reliance on foreign investors in LC markets have a stronger case for preserving prudent macroeconomic environments to insulate against external shocks.
  - Monitoring foreign participation shares (notably around 30–40 percent) and investor-base concentration metrics can inform financial-stability assessments and policy calibration.

*Source: _wp15141 - References  _______________________________________________________________21*

### REFERENCES

### _wp15141 - REFERENCES

### References
- Arslanalp, S. and T. Tsuda, 2014, “Tracking Global Demand for Emerging Market Sovereign Debt”, IMF Working Paper No. 14/39, International Monetary Fund.
- Chami, R., D. Hakura, and P. Montiel, 2009, “Remittances: An Automatic Output Stabilizer?” IMF Working Paper No. 09/91, International Monetary Fund.
- Combes, J. L., and C. Ebeke, 2011, "Remittances and Household Consumption Instability in Developing Countries", World Development 39.7 (2011): 1076–1089.
- Ebeke, C. and Y. Lu, 2014, “Emerging Market Local Currency Bond Yields and Foreign Holdings in the Post-Lehman Period––a Fortune or Misfortune?”, IMF Working Paper No. 14/29, International Monetary Fund.
- González, A., T. Teräsvirta, and D. Van Dijk, 2005, “Panel Smooth Transition Regression Models”, Research Paper No. 165, Quantitative Finance Research Centre, University of Technology, Sydney.
- Hansen, B., 1999, “Threshold Effects in Non-Dynamic Panels: Estimation, Testing, and Inference”, Journal of Econometrics, 93 (2): 345–368.
- IMF, 2014 Global Financial Stability Report, Moving from Liquidity- to Growth-Driven Markets, Chapter 2. “How Do Changes in the Investor Base and Financial Deepening Affect Emerging Market Economies?, April 2014
- Lim, J. J., S. Mohapatra, and M. Stocker, 2014, “Tinker, Taper, QE, Bye? The Effect of Quantitative Easing on Financial Flows to Developing Countries”, Background Paper for Global Economic Prospects 2014, Washington, DC: World Bank.
- Masten, A., F. Coricelli, and I. Masten, 2008, "Non-Linear Growth Effects of Financial Development: Does Financial Integration Matter?" Journal of International Money and Finance, 27.2 (2008): 295–313.
- Peiris, S. J., 2010, “Foreign Participation in Emerging Markets’ Local Currency Bond Markets (EPub)”, IMF Working Paper No. 10/88, International Monetary Fund.
- Rose, A. K. and M. M. Spiegel, 2009, "International Financial Remoteness and Macroeconomic Volatility", Journal of Development Economics 89.2 (2009): 250–257.

*Source: _wp15141 - REFERENCES*

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_Source: https://www.imf.org/-/media/websites/imf/imported-full-text-pdf/external/pubs/ft/wp/2015/_wp15141.pdf_
