Is Transparency Good For You? by Rachel Glennerster, Yongseok Shin
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Is Transparency Good For You? Is Transparency Good For You? by by
Rachel Glennerster, Yongseok ShinRachel Glennerster, Yongseok Shin
Discussed by:
Campbell R. HarveyDuke University
National Bureau of Economic Research
IMF Annual Research ConferenceNovember 4-5, 2004
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Motivation
Popular Opinion:• Emerging markets financial crisis caused or made worse
by lack of transparency
Purpose of paper:• Does increased transparency reduce sovereign spread
(which presumably implies a lower probability of crisis)?
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Measures of Transparency
Measures: • Probability of crisis: country credit spreads• Transparency:
– IMF Article IV publication– SDDS adoption– ROSC adoption
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Overview of Findings
Results:• Increased transparency credit spreads more than 300bp
in regression (1)
• Larger drop in spreads for:
– Initially less transparent countries
– Countries with smaller debt markets
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Theory
Why does transparency affect borrowing costs?• Two models of asymmetric info:
– 1) Moral hazard (behavior of debtor)
– 2) Signaling (nature of random shock)
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Theory
Moral Hazard• Transparency increases => reduces asymmetric
information => less difference between informed and uninformed traders increases liquidity and reduces borrowing cost decreases (always)
Signaling• Good shock => voluntary transparency => borrowing cost
decreases
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News Results
News Effect of IMF publication• Higher volatility of daily spreads associated with IMF
publication– IMF publication => more informed markets
– But IMF publication also has information about economic outlook. When non-borrowing countries are examined, volatility also increases
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Details
Data:• Country Credit Spread = EMBI portfolio yield –
US zero coupon yield• Number of countries: 23 emerging markets• Sample period: 1 January 1999 – 30 June 2002
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Estimation
Panel estimation: (p.14)• ln(spread)it = i + t qt + 1 Pubit + 2 ROSCit + 3 SDDSit +
4 Pubit *ROSCit + 5 Pubit * SDDSit + 6 SDDSit * ROSCit + it
• Country effects• Time effects• Transparency dummies
– Pub, ROSC, SDDS
• Interaction terms– Marginal benefit of transparency – increasing/decreasing?
• Std Errors – corrected with Newey West
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Estimation
Panel estimation: (p.14)• Other variables:
– Kauffman et al’s rule of law, Transparency International’s Corruption Perception Index
– Size of debt market– Macro variables (inflation, current account/GDP, fiscal
balance/GDP)– PIN (Public Info Notice)
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Estimation
Panel estimation: (p.14)• Model (6)
– 16 variables, 23 country effects, 14 time effects– 322 observations
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Endogeneity Problem
Adopting the IMF disclosure is a government decision. The decision could be strategic and related to growth opportunities in the economy.
• Hence, any relation between spreads and publishing could be spuriously induced as a result of severe endogeneity
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Endogeneity Problem
Author’s approach:
“Any endogeneity bias is corrected for in two ways..”
1. Exclude program countries
2. 2SLS
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Endogeneity Problem
2SLS
First stage:(i) Run OLS regression of Pub dummy (e.g.) on:
average time between Article IV discussions, interacted with regional dummies, GDP per capita in 1998, size of debt market, rule of law, voice, corruption, squares of some of the variables, regional dummies
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Endogeneity Problem
2SLS
First stage:(ii) Regression (1) has 322 observations,
40 variables and 85% R-square.
(iii) Full 2SLS similar to OLS
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Endogeneity Problem
2SLS issues
1. Fitted values lie outside the 0-1 range2. Is it really the case that the 45 variables are uncorrelated
with spreads? “…the precise timing of compliance depends more on the time since the country committed to meet the specifications of the SDDS than on concurrent events.”
3. With enough variables in the first, we would get a 100% R-square. It is no surprise that the results are similar.
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Endogeneity ProblemStage 1 Instrument Regression
ln(spread)fop 1.08 sop*ldebt2 -2.83 ***fop*europe 0.34 * sop*lgdp2 16.91 ***fop*latin 0.04 sop*law2 9.83 ***fop*middleeast 0.11 sop*voice2 -2.40 ***fop*ldebt -0.12 sop*corrupt2 34.02 ***fop*law -0.72 *** tsub -0.09 *fop*voice 0.28 tsub*asia -0.05 ***fop*corrupt 0.81 ** tsub*europe -0.06 ***sop 678.13 *** tsub*law 0.04 ***sop*europe -29.06 *** tsub*ldebt 0.01sop*asia -31.67 *** tsub*voice 0.00sop*latin -13.81 *** tsub*corruption -0.09 ***sop*middleeast -15.57 ***sop*law 28.52 *** Quarterly dummies yessop*lgdp -266.05 *** Obs 308sop*ldebt 65.59 *** R-squared 0.54sop*corrupt -35.69 ***sop*voice 12.11 ***
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Endogeneity Problem
What to do?
• Problem very similar to Bekaert, Harvey and Lundblad, “Does Financial Liberalization Spur Growth” forthcoming JFE.
• Here regressions of economic growth are run on a liberalization dummy – suffers from same type of endogeneity bias.
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Endogeneity Problem
Develop a measure of exogenous growth opportunities
• Assume that a country’s growth opportunities are related to its industrial mix
• Assume that global price to earnings (PE) ratios contain information about growth opportunities
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Endogeneity Problem
Develop a measure of exogenous growth opportunities
• Create growth opportunities measure by weighting global PE ratios by a particular country’s industrial weights
• This variable strongly predicts economic growth – but is exogenous.
• This variable has both cross-sectional and time-series variation
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Endogeneity Problem
Develop a measure of exogenous growth opportunities
• Suggest adding to the regression to control for growth opportunities
• For more details, see Bekaert, Harvey, Lundblad, Siegel, 2004, “Growth Opportunities and Market Integration”
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Specification Issues
1. Much of the significance comes from the interaction of the transparency indicators (which is not reported in the paper)
2. Much of the explanatory power comes from the country fixed effects (which is not reported in the paper). The time effects are not important.
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Specification Issues
3. What happens when other measures of country risk are included in the regression?
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Specification Issues Regressions of Spreads on Transparency Measures, Interaction Terms and ICRG risk ratings
ln(spread) ln(spread) ln(spread) ln(spread) ln(spread) ln(spread) ln(spread)
pub -0.09 -0.25 ** -0.22 *** -0.30 *** -0.18 *** -0.26 ***(0.07) (0.10) (0.08) (0.08) (0.08) (0.09)
rosc -0.03 -0.21 -0.12 -0.14 -0.26 *** -0.28 **(0.06) (0.17) (0.10) (0.14) (0.12) (0.14)
sdds -0.12 * -0.22 *** -0.21 *** -0.19 *** -0.26 *** -0.21 ***(0.07) (0.07) (0.06) (0.07) (0.06) (0.06)
pub*sdds 0.30 *** 0.23 *** 0.34 *** 0.11 0.19 *(0.11) (0.09) (0.10) (0.10) (0.10)
pub*rosc 0.12 0.03 0.14 0.20 0.25(0.17) (0.13) (0.15) (0.15) (0.17)
sdds*rosc 0.15 0.07 0.09 0.16 0.20 *(0.14) (0.10) (0.11) (0.11) (0.11)
composite -0.07 ***(0.01)
political -0.05 ***(0.01)
finance -0.08 ***(0.01)
economic -0.05 ***(0.01)
country dum Yes Yes Yes Yes Yes Yes Yestime dum Yes Yes Yes Yes Yes Yes YesObs 322 322 322 322 322 322 322R-squared 0.84 0.85 0.85 0.91 0.89 0.90 0.88
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Specification Issues
Argentina Bulgaria Colombia Cote D'Ivoire Croatia Mexico Morocco768 0 854 0 604 0 1,023 0 543 0 693 0 743 0685 0 896 0 559 0 1,032 0 650 0 565 0 688 0804 0 903 0 675 0 1,084 0 747 0 624 0 688 0623 0 696 0 524 0 1,218 0 562 0 466 0 488 0551 0 620 0 479 1 1,425 0 336 1 361 0 391 0645 0 775 1 725 1 1,691 0 433 1 402 0 499 0669 0 692 1 701 1 1,785 0 376 1 334 0 430 0808 0 826 1 773 1 2,189 0 372 1 367 0 556 0755 1 734 1 666 1 2,712 0 254 1 396 0 507 0983 1 732 1 601 1 2,175 0 226 1 342 0 484 0
1,489 1 672 1 558 1 2,216 0 200 1 355 0 453 02,972 1 568 1 555 1 2,349 1 211 1 360 1 578 14,808 1 432 1 554 1 2,069 1 167 1 278 1 413 15,467 1 369 1 553 1 1,837 1 133 1 266 1 383 1
- + - + - + +
Difficult to see changes in the data. Here is the “pub” variable.
Spread change
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Specification Issues
Nigeria Panama Peru Poland Russia1,128 0 459 0 664 0 259 0 5,014 01,094 0 430 0 567 0 246 0 3,909 01,232 0 511 0 640 0 268 0 3,273 01,151 0 462 0 541 0 241 0 3,207 01,170 0 384 0 446 0 225 0 2,112 02,079 0 444 0 553 0 274 1 1,204 02,151 0 425 0 545 0 265 1 932 01,992 0 485 0 726 0 252 1 1,109 11,654 0 468 0 649 0 220 1 1,064 11,339 0 416 1 729 1 179 1 952 11,346 1 412 1 635 1 210 1 902 11,253 1 452 1 592 1 226 1 818 1
997 1 375 1 458 1 187 1 569 1999 1 387 1 501 1 179 1 482 1
+ - + + +
Spread change
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Conclusions
• I believe the story (transparency leads to lower spreads)
• There are some issues that need to be cleaned up