Decomposing the Takeover Effects of AntiTakeover Provisions Vicente Cuñat The London School of Economics Mireia Gine University of Pennsylvania WRDS amp IESE Business School Maria Guadalupe ID: 793281
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Slide1
Price and Probability: Decomposing the Takeover Effects of Anti-Takeover Provisions
Vicente Cuñat
The London School of Economics
Mireia Gine
University of Pennsylvania, WRDS & IESE Business School
Maria Guadalupe
INSEAD and CEPR
Slide2(Internal) Anti-Takeover ProvisionsAnti-Takeover Provisions (ATPs): Charter amendments that explicitly or implicitly delay or preclude hostile takeovers (staggered boards, poison pills, supermajority…)Evidence on their negative effect on firm value.
Cross sectional (Gompers, Ishii,
Metrick
, 2003)
Causal evidence (Cuñat,
Gine
, Guadalupe, 2012)
Value effects
are
indirect evidence of
the effect
of ATPs on
takeovers
Research Question
: Study the
direct effects
of
ATPs
on takeovers. Identify
channels
through which they create/destroy value for firms.
Slide3Value Creation from ATPs through TakeoversThree channels for ATPs affecting shareholder value: Takeover probability Takeover premium Disciplining effect of a takeover threat
Popular
wisdom (textbook!):
Negative
effect of
ATPs
on
takeover probability
Positive effect on premium (improved bargaining)
Existing Evidence
Limited/contradicting evidence
Challenge to establish causality
Research GoalEstablish the causal effect of anti-takeover provisions on value creation through the merger/takeover channelProvide a framework that decomposes the overall value premium into: probability + price+ selection effectsProbability
:
Change on the probability of a takeover due to ATPs
Price:
Effect of ATPs on the premium paid for a
given firm
Selection Effects:
Are the premiums of the additional firms taken over with low ATPs inherently different from those taken over with high ATPs?
Slide5Summarizing a Takeover Market
f(Y)
Y
Takeover Premium
Density
Probability of
no
takeover
Probability of a takeover
Premium =0
Distribution of observed premiums
Slide6Summarizing a Takeover Market
f(Y)
Y
Expected premium
conditional
on a takeover
Slide7Summarizing a Takeover Market
f(Y)
Y
Expected overall gains via takeover premiums
“
unconditional
premium”
Slide8f(Y)
Y
f(Y)
Y
Twin Populations
Slide9c
Control
Keep ATP
D=0
Treatment
Drop ATP
D=1
f(Y)
Y
f(Y)
Y
Apply a Randomized Treatment
Treatment (D) = “Drop an Anti Takeover Provision (ATP)”
What can we identify in this setting?
Slide10c
f(Y)
Y
f(Y)
Y
Effect on Takeover Probability
How does dropping an ATP affect the likelihood of a takeover?
(Probability Effect)
Control
Treatment
Slide11c
f(Y)
Y
f(Y)
Y
Effect on Unconditional Premium
How does dropping an ATP affect the expected shareholder
gains from future takeovers? (Unconditional Premium)
Control
Treatment
Slide12c
f(Y)
Y
f(Y)
Y
Effect on Conditional Premium
This is what the literature normally computes, the effect of a treatment on the premiums of the takeovers that we observe
However, this is not very meaningful, because these are different firm populations.
I
t is the composition of
two effects:
Slide13f(Y)
Y
f(Y)
Y
Causal Effect on Premium
Effect 1- Pure premium effect:
Effect of the treatment on the premium of takeovers that would have happened even under no treatment
Slide14f(Y)
Y
f(Y)
Y
Causal Effect on Premium
How does dropping an ATP affect the premium
of a given
t
arget? (Causal Effect on
Price
)
Control
Treatment
Slide15c
f(Y)
Y
f(Y)
Y
Selection Effect on Premium
Effect II - Selection Effect:
Characteristics of the premium of takeovers that would not happen under no treatment
Slide16c
f(Y)
Y
f(Y)
Y
Selection Effect on Premium
How does dropping an ATP affect the
selection (in terms of premium) of the firms that are taken over?
Control
Treatment
Slide17Estimating all the Elements: Decomposition Total shareholder gains = ΔY = = Causal effect on Probability
=
E[Y
| D=0 ,
Pop
0
] Δ
P
+ Casual effect on Premium
+ Pr[T=1 |
D=1] Causal Effect
+ Selection Effects +Pr[T=1
| D=1]{ E[Y | D=1, Pop1] - E[Y | D=1 , Pop0] }
Slide18Estimating all the Elements: Decomposition Total shareholder gains = ΔY =
=
Causal effect on Probability
=
E[Y
| D=0 ,
Pop
0
] Δ
P + Causal effect on Premium
+ Pr[T=1 | D=1] Causal Effect
+ Selection Effects +Pr[T=1 | D=1]{ E[Y | D=1, Pop1] - E[Y | D=1 , Pop0] } Identification
Strategy:Need to solve TWO issues:Exogeneity of the treatment DDeal with selection
Slide19Estimating all the Elements of the DecompositionExogeneity: Causal Estimate - Unconditional Premium and
Probability
RDD
votes
on
shareholder-sponsored
proposals
to drop ATPs. Extrapolate to the whole
population with a matching model
CIA validated by the RDD design (Angrist and Rokkanen, 2015)Selection: causal effect on premium and selection effect: Bound the best-case and worst-case selection scenario (Lee, 2009).
Slide20Advance Results ATPs have a negative effect on price, probability and selection Accounting for selection is important (25% to 50% of the effect)No trade-off between probability of a takeover and premium paid
Drivers of the negative effect on premium
Lower competition among bidders (less contested deals)
Worse matching between bidders and target (synergies)
Ambiguous results on bidder’s returns (bargaining)
Slide21Data DescriptionRiskmetrics + ISS Tapes: 1994-2013Shareholder proposals on ATPs voted on at annual meetingsType of proposal, votes in favor of dropping an ATP
SDC Platinum:
Data on firm
takeovers/mergers
Define takeover within 5 years of a vote
Takeover premium: cumulative return from 4
weeks before announcement until completion
Slide22Merger Probability
RDD estimate:
9
%
Slide23Unconditional Premium
RDD estimate: 4%
Slide24Extrapolation: Angrist and Rokkanen (2015)Can we extrapolate the RDD results to the full population of firms?Running variable, (Votes) - only source of unobserved heterogeneityIf V, randomly assigned: Equivalent to a randomized trialIf not, condition on variables that remove the indirect relationship between vote and outcomes. Conditional Independence Assumption (CIA)
Use the RD setting to test the CIA -
Angrist
and
Rokkanen
(
2015)
Find a model (set of controls) for which the vote becomes irrelevant
Estimate effect independently
of v
otes Matching estimator using the same model validated by the RDD.
Slide25A Simple ModelVariables that predict mergers and vote outcomesLog Sales (t-1)Total Market Value (t-1)Profit Margin (t-1)Cash & Liquid Assets (t-1)Av. Industry
Tobins’Q
Av. Industry Market Value
% ownership of institutional investors
Firm’s E-index
Plus - Year Dummies
Slide26Conditional Independence Assumption - Test
Slide27Propensity Score Estimates
Panel A: Propensity Score Weighting
(1)
(2)
(3)
(4)
Takeover Probability
Unconditional Premium
yes
0.045**
0.046*
2.77***
2.75**
(0.0208)
(0.025)
(1.03)
(1.16)
t stat
2.18
1.82
2.69
2.38
Model
Y
N
Y
N
Obs
2.063
2.063
2.063
2.063
Panel B: Nearest Neighbor Matching with clustering
(1)
(2)
Takeover Probability
Unconditional Premium
yes
0.0344*
2.505***
(0.0209)
(0.910)
Obs
2,296
2,296
Slide28So Far…Total shareholder gains = ΔY =
=
Causal effect on Probability
=
E[Y | D=0 , Pop
0
] Δ P
+
Causal effect on Premium
+ Pr[T=1 | D=1] Causal
Effect + Selection Effects
+Pr[T=1 | D=1]{ E[Y | D=1, Pop1] - E[Y | D=1 , Pop0] }
Slide29So Far… 2.7% = 2.7% =
=
1.33%
=
29.6%
*
4.5%
+ Causal effect on Premium
+ 13.5% Causal Effect
+ Selection Effects +13.5% { E[Y | D=1, Pop1] - E[Y | D=1 , Pop0] }
Slide30Recovering the Causal Premium EffectLee’s Sharp Bounds (Lee, 2009)Assume effect of ATPs on takeover probabilities is monotonic Then: Takeovers under with an ATP are a subset of takeovers without an ATPCreate best an worst case selection scenarios (lower and upper bounds), by the worst/best observations in the sample of takeover without ATP
Slide31D=0
T=1
10% of firms
Y | T=1
f(Y | T=1)
Trimming: Example
D=1
T=1
14% of firms
Y
| T=1
f(Y | T=1)
28%
additional firms
Slide32D=0
T=1
10% of firms
Y | T=1
f(Y | T=1)
Trimming: Example
D=1
T=1
14% of firms
Y
| T=1
f(Y | T=1)
28% Highest Y* selected
Y | T=1
f(Y | T=1)
28% Lowest Y* selected
Y | T=1
f(Y
| T=1)
28%
additional firms
Slide33Trimming: Example
28% Highest Y* selected
Y | T=1
28% Lowest Y* selected
Y | T=1
D=0
T=1
10% of firms
Y
| T=1
f(Y
| T=1)
D=1
T=1
14% of firms
Y | T=1
f(Y | T=1)
Trimmed Populations
f(Y | T=1)
f(Y
| T=1)
Slide34Trimming: Example
Lower causal bound
Y | T=1
Y | T=1
D=1
Y | T=1
f(Y | T=1)
Y | T=1
f(Y | T=1)
Upper causal bound
f(Y | T=1)
f(Y
| T=1)
T=1
14% of firms
D=0
Slide35Causal Effect on Premium
(1)
(2)
(3)
(4)
(5)
(6)
Premium 4weeks before Announce
.
to Completion
Premium 1 week before Announce
. to CompletionCAR(-5,5) FFM
CAR
(Vote,Ann+1)
Runup (-42,5)
FFM
Runup
(-
42, Completion) FFM
Lower Bound Estimation of the Premium Effect
yes
0.29
6.29*
6.85***
19.66
3.66
0.59
(4.051)
(3.45)
(2.05)
(21.08)
(3.13)
(4.44)
Upper Bound
Estimation of the Premium Effect
yes
5.46**
9.94***
9.44***
42.11**
8.49**
16.02***
(2.87)
(3.22)
(2.08)
(19.65)
(3.26)
(4.21)
Obs
2296
2296
2296
2296
2296
2296
Slide36Decomposition…Split the observed premium into its causal effect and firm selection
effect
2.7%
=
2.7%
=
=
1.33%
= 29.6% * 4.5%
+ Causal effect on Premium + 13.5% Causal Effect + Selection Effects +13.5% { E[Y | D=1, Pop1
] - E[Y | D=1 , Pop0] }
Slide37Decomposition…Split the observed premium into its causal effect and firm selection
effect
2.7%
=
2.7%
=
=
1.33%
=
29.6% * 4.5%
+ [ 0.04% , 0.73%] + 13.5% [ 0.3% , 5.4%]+ [ 1.34% , 0.65%] +13.5% [ 10.3% , 5.0%]
Slide38Decomposition
(1)
(2)
(3)
(4)
Change in Shareholder Value
Premium Effect
Takeover Probability Effect
Selection Effect
Panel A: Lower Bound
Estimation of the Premium
Effect
2.7%
0.04%1.33%
1.34%
(1%)
(49%)
(49%)
Panel B: Upper Bound
Estimation of the Premium Effect
2.7%
0.73%
1.33%
0.65%
(27%)
(49%)
(24%)
Slide39Drivers of Positive Premium EffectLower ATPs may attract more competitive bidsPotentially better matching between bidder and target (synergies)Better selection of bidders With ATP, the manager decides (balance shareholder value + private benefits of control)Without ATP the market and shareholders decide (maximize shareholder value)Better bargaining position due to more competitors, worse bargaining position due to lower barriers (ambiguous effect)
Slide40Drivers of Positive Premium Effect (1)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Acquirer Premium
Competition
Acquirer Premium
Acquirer CAR(-5,5) FFM
Runup
Acquirer
(-42,5) FFM
Runup
Acquirer (-
42,Comp) FFM
Number of Bidders
Unsolicited Deal
Challenged Deal
Stock
Percent
Lower Bound Estimation
yes
-8.46**
-4.44***
-6.05**
-3.30
0.15**
0.037
0.11***
-26.87***
(3.19)
(1.35)
(2.86)
(4.44)
(0.06)
(0.03)
(0.03)
(7.22)
Upper Bound Estimation
yes
2.38
1.03
5.87**
17.64***
0.26**
0.09
0.17*
-3.15
(2.35)
(1.38)
(3.26)
(3.78)
(0.10)
(0.09)
(0.09)
(5.39)
Obs
2296
2296
2296
2296
2296
2296
2296
2296
Slide41Drivers of Positive Premium Effect (I1)
(1)
(2)
(3)
(4)
Matching
Same 2Digit SIC
Size Target Rel. to
Acquiror
Total
Synergies
FFM
Total Synergy/ Total Mkt Cap
Lower Bound Estimation
yes
0.175**
-1.33**
-306,949
-0.03
(0.06)
(0.51)
(2,428,514)
(0.03)
Upper Bound Estimation
yes
0.23***
-0.69
7,209,041***
0.14***
(0.06)
(0.48)
(1,844,029)
(0.03)
Obs
2296
2296
2296
2296
Slide42Drivers of Positive Premium EffectMore competitionMore biddersMore challenged dealsMore cash dealsLower/ambiguous effect on acquirer premiumBetter matchingLarger biddersMore strategic biddersMore total synergies
Slide43ConclusionsAfter rejecting an ATP:Merger probability increases by 4.5% (0.9 % per year)Expected merger unconditional premium increases by 2.7%Decomposing the unconditional premium:Takeover probability effect responsible for 49% of value effectCausal Premium Effect: Between 1% and 26% of value effect
Selection Effect: Between 24% and 49
% of value
effect
Causal Premium Effect explained by
More bidding competition
Better matching between bidder and target
No effect on bidder’s premiu
m
Slide44ConclusionsWe identify several channels through which ATPs on average destroy valueLower likelihood of a deal happeningWorse selection of targetsWorse selection of bidders The
division of gains
from dropping an ATP seem to accrue almost exclusively to target shareholders. No apparent trade-off between price and probability
Procedure
to estimate the effects of
ATPs causally, beyond the discontinuity
We deal with the inherent selection problems when price and probability are co-determined
Slide45THANKS!
Slide46END
Slide47Heterogeneous Effects: Extrapolation
Merger Probability
Merger Probability
Unconditional Premium
Unconditional Premium
Slide48Beyond the Discontinuity: CIA
Takeover Probability
Unconditional Premium
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
D=0
D=1
D=0
D=1
Vote
-0.00113
0.000615
-0.00349***
-0.00167
-0.0715*
-0.0319
-0.113***
-0.0458
(0.00103)
(0.00105)
(0.00101)
(0.00114)
(0.0385)
(0.0398)
(0.0392)
(0.0446)
ln Sales
-0.0151
-0.0253
-1.491***
-0.351
(0.0152)
(0.0154)
(0.575)
(0.602)
Profit Margin
0.216***
0.0463
4.572
0.171
(0.0763)
(0.0833)
(2.893)
(3.260)
Ln Market Value
-0.0176
-0.0161
-0.572
-0.844
(0.0141)
(0.0143)
(0.536)
(0.560)
Cash Liquidity
0.0933
0.248**
2.724
10.47**
(0.115)
(0.106)
(4.356)
(4.133)
Percent Inst. Own.
-0.0142
-0.176**
2.533
-8.051**
(0.0667)
(0.0832)
(2.529)
(3.256)
Av. Ind.
Tobins'Q
0.00691
0.0243**
0.660
0.709
(0.0113)
(0.0119)
(0.428)
(0.466)
Av. Ind. Market Value
0.0648***
0.0297**
1.387***
0.315
(0.0119)
(0.0135)
(0.451)
(0.528)
Entrechment
Index
0.0154*
0.00910
-0.195
0.473
(0.00822)
(0.0103)
(0.312)
(0.404)
Year Dummies
Y
Y
Y
Y
1,151
1,151
1,005
1,005
1,151
1,151
1,005
1,005
R-sq
0.001
0.131
0.012
0.096
0.003
0.109
0.008
0.081
Slide49Classic RDD: Estimates
Panel A: Probability of becoming a takeover target over the next 5 years
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(9)
(10)
Full
+/-10
+/-5
+/-2.5
+/-1.5
poly hl 2
poly hl 3
IK
CCT
D =
1
0.0508***
0.0557
0.0853**
0.106*
0.127*
0.122***
0.141***
0.095***
0.104**
(0.0195)
(0.0345)
(0.0412)
(0.0565)
(0.0702)
(0.0421)
(0.0514)
(0.029)
(0.04)
Obs
2,807
822
415
231
139
2,807
2,807
2,807
2,807
R-sq/Z
0.048
0.006
0.012
0.017
0.028
0.053
0.053
3.24
2.36
Panel B: Unconditional Premium
Full
+/-10
+/-5
+/-2.5
+/-1.5
poly hl 2
poly hl 3
IK
CCT
D = 1
2.601***
3.235**
3.852**
5.379**
7.237**
6.571***
6.542***
4.76***
5.36**
(0.792)
(1.266)
(1.801)
(2.641)
(3.151)
(1.758)
(2.267)
(1.43)
(2.21)
Obs
2,807
822
415
237
150
2,807
2,807
2,807
2,807
R-sq/Z
0.033
0.011
0.012
0.021
0.039
0.038
0.039
3.30
2.42
Slide50Literature on Anti-Takeover ProvisionsHowever, so far, limited/contradicting evidence of direct effects of anti-takeover provisions on mergers. Probability of a Takeover (no effect) Comment and Schwert (1995), (negative effect) Bates, Becher & Lemmon (2008
) (positive)
Bange
&
Mazzeo
(2004)
Premiums:
(no effect) Comment
and
Schwert (1995), Bebchuk, Coates, and Subramanian (2002), (heterogeneous effect – delay vs. preclude) Kardyzhanova and Rhodes Kropf (2011), (poison pill vs. board independence) Cotter, Shivdasani, Zenner (1997);
Bange & Mazzeo (2004)
Threat of a takeover and disciplining effect of potential mergers: Martin and McConell (2012), Lel & Miller (2013)
Slide51Classic RDD Specification ChecksIdentification ChecksThe vote distribution is continuous at the majority thresholdThe observable characteristics of firms are the same on both sides of the discontinuityImplementation probability jumps discretely at the
threshold
Selection Into the Sample
Local analysis: firms belong to S&P1500, have proposals
Firms in our sample tend to be larger than population firms
No selection in terms of profitability