Private Equity: Where we have been and the road ahead
Mike Wright
Centre for Management Buyout Research
Imperial College Business School,
Exhibition Road
London SW7 2AZ, UK
Sarika Pruthi
School of Global Innovation & Leadership,
Lucas College & Graduate School of Business,
San Jose State University (SJSU),
Business Tower 950, One Washington Square,
San José, CA 95192-0066, USA
Email:
[email protected]
Kevin Amess
Centre for Management Buyout Research
And
Nottingham University Business School
Jubilee Campus
Nottingham, NG8 1BB
Email:
[email protected]
Yan Alperovych
emlyon business school,
Research Centre for Entrepreneurial Finance
23, Avenue Guy de Collongue, CS 40203
69134 Ecully cedex, Lyon,France
Email:
[email protected]
Authors are listed in reverse alphabetical order; all authors contributed equally
Abstract
We provide an overview of the systematic evidence relating to the impact of private equity
backed buyouts over the last two decades. We focus on performance; employment and
employee relations; innovation, investment and entrepreneurship; longevity and survival. We
also explore a future research agenda in the context of a maturing PE industry.
Introduction
Private Equity (PE) firms acquire a portfolio of firms via a Leveraged Buyout (LBO). Mature
businesses (either listed or private/family-owned) and divisions/subsidiaries of large firms are
targeted for such deals. PE-backed LBOs first came to prominence in the US during the 1980s
when large listed firms, such as Safeway and RJR Nabisco, were acquired. LBOs attracted
controversy and created debate concerning the efficacy of both the public limited company
(PLC) and the LBO governance structure that was installed after the deal. Jensen (1989)
proposed that the LBO governance structure was superior to that of PLCs. He argued that
increased management ownership, high leverage, and monitoring by PE firms after an LBO
provided management in portfolio firms with incentives to focus on performance. Moreover,
the PLC governance structure had demonstrated itself incapable of providing senior
management with such powerful incentives. In response, Rappaport (1990) drew attention to
the weaknesses of the LBO governance structure. High levels of debt create strategic
inflexibility and PE firms have a business model that leads them to focus on short-term
performance improvements prior to their exit. This controversy still persists.
Since the 1980s, PE activity has gone through several waves and the LBO governance structure
has not superseded the PLC in most large firms in the US or UK. Nevertheless, PE-backed
LBOs have become a global phenomenon and are a significant ownership structure in many
countries. Propelled by low interest rates on other asset classes and a record $1.1tn of cash
pledged worldwide by investors, buyout volumes in 2017 were up 27 per cent year on year
2
(Espinoza 2018). Cross-country patterns also witnessed a substantial change. For example, UK
dominance of the European market twenty years ago is being eroded as deal value came neckand-neck with that in Germany (CMBOR 2017).
The importance of PE as a research topic has similarly grown over the last twenty years.
Citations to PE journal articles rose to just below 5,000 by 2006, increasing sharply in 2007
and 2008 around the time the market peaked, with subsequent steady growth to top 10,000 in
2012 (Cumming and Johan, 2017). This could be driven by a curiosity to understand more
about PE activity and also by the fact that the impact of PE-backed LBOs continues to be
contentious with respect to: performance gains; employment and employee relations; longer
term effects on innovation and investment; and the longevity and survival of portfolio firms.
In this article we first take a retrospective look at the impact of PE-backed buyouts in the two
decades since the foundation of this journal, and then set out a vision for future research.
Where have we been? Busting the myths
There is now extensive academic evidence on the impact of PE-backed LBOs. This systematic
examination has enabled a number of myths about the effects, both positive and negative, to be
debunked. The following sections provide an overview.
Fund level: performance of the asset class
Wealthy individuals and institutions (e.g. pension funds, insurance companies, and
endowments) invest in PE funds as Limited Partners (LPs). The PE firm that manages funds is
the General Partner (GP). LPs are therefore concerned with how well GPs manage funds and
generate performance. There are four main issues concerning the measurement of fund
performance: the quality of data available; whether performance is measured gross or net of
3
fees; how continuing and dead funds are valued; and the choice of benchmark to adjust for risk
(Kaplan and Schoar 2005; Phalippou and Gottschalg 2009; Phalippou 2014). Earlier studies
tackled these issues to a various extent and reported that PE funds had neutral or superior gross
performance compared to investment in public market equivalents (Kaplan and Schoar 2005).
More recent studies find that investors in PE funds barely break even after fees and carry
(Driessen, Lin and Phalippou 2012; Franzoni, Nowak, and Phalippou 2012; Sørensen, Wang,
and Yang 2014; Jegadeesh, Kräussl, and Pollet 2015).
Another related issue is the persistence in performance of top PE firms (Hochberg, Ljungqvist,
and Vissing-Jørgensen 2014). Most recent evidence finds that as the industry has become more
competitive, performance has either declined (Lerner, Schoar and Wongsunwai 2007; Sensoy,
Wang, and Weisbach 2014; Braun, Jenkinsson, and Stoff 2017) or ‘noise’ has made it difficult
for investors to pick the best performers (Korteweg and Sorensen 2017).
Portfolio firm
Profitability and productivity
PE firms are active investors in their portfolio firms, seeking to implement strategies for
performance improvements. Both firm- (Amess 2003) and plant-level studies (Lichtenberg and
Siegel 1990) demonstrate improvements in productivity, with buyout plants shifted from
under-performing their sector pre-buyout to subsequently outperforming it (Harris, Siegel, and
Wright 2005). However, profitability gains in US deals conducted in the 1990s and early 2000s
appear to be less than those reported for deals conducted in the 1980s (Guo, Hotchkiss, and
Song 2011). European studies have also drawn attention to the growth, cost-cutting and
efficiency aspects of buyouts (Boucly, Sraer, and Thesmar 2011; Wilson et al. 2012). Yet,
indications are that enhanced profitability has been significantly associated with operating
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gains, sector-specific expertise of PE firms, and geographic proximity of lead investors to their
target companies (Cumming, Siegel, and Wright 2007; Cressy, Munari, and Malipiero 2007;
Scellato and Ughetto 2013; Bernstein and Sheen 2016).
Employment and employee relations
The impact of PE on jobs has been highly contentious. Critics claim PE firms boost profits in
portfolio firms by cutting jobs. In contrast, proponents argue that PE creates value by pursuing
profitable growth strategies, which in turn creates jobs. Determining the relative merits of these
competing arguments has motivated academics to conduct empirical analyses using firm-,
plant-, and employee-level data from a variety of national and international sources.
Firm-level evidence is mixed, with some studies reporting that PE involvement in the deal has
no statistically significant impact on employment (Bergström, Grubb, and Johnsson 2007;
Amess and Wright 2012), and others pointing to positive impact in both the short- and mediumterm (Scellato and Ughetto 2013). Data that account for job creation and destruction at
establishment levels reveal that PE-backed buyouts are catalysts for a process of creative
destruction not captured in firm-level studies (Davis et al. 2014). Findings on this issue are
sensitive to the methods employed (Amess, Girma, and Wright 2014).
Types of buyout deals and their sources differentially influence employment. Insider driven
deals (Management Buyouts) generally increase employment (Amess and Wright 2007) while
outsider driven deals such as Management Buy-Ins (Amess and Wright 2007) are associated
with a decline. Meuleman et al. (2009) find that employment growth is higher in divisional
buyouts compared to secondary, private, and family buyouts. Boucly, Sraer, and Thesmar
5
(2011) also report that employment grows in private-to-private deals and secondary buyouts
(SBOs).
The impact of PE on jobs depends on the type of job and employee characteristics. Lichtenberg
and Siegel (1990) found a reduction in the number of non-production workers employed in US
buyouts but no significant effect on production workers. Olsson and Tåg (2017) report that
Swedish employees performing routine jobs experience an increase in employment, whereas
workers performing off-shorable tasks experience higher unemployment.
Critics of PE-backed LBOs argue that they lead to deterioration in employee work conditions
as new owners seek to cut costs to improve profits. Systematic studies, however, find little
evidence to support the negative impact of buyouts on employee and industrial relations
practices such as training, job discretion, consultation, role of trade unions, etc. (Bacon et al.
2013). Recent work by Cohn et al. (2017) documents large and persistent reductions in postbuyout workplace injury rates for public-to-private buyouts, albeit the effect is absent in private
buyouts.
Innovation, investment, entrepreneurship and growth
PE-backed LBOs may enable managers with an entrepreneurial mindset to pursue
entrepreneurial opportunities (Bruining and Wright 2002; Wright et al. 2000), resulting in
increased new product development (Wright, Thompson and Robbie 1992; Zahra 1995). PEbacked LBOs also reduce financial constraints, potentially leading to increased investment
(Bertoni, Ferrer, and Marti 2013; Engel and Stiebale 2014; Ughetto 2016). For R&D
expenditure, evidence is mixed (Lichtenberg and Siegel 1990; Long and Ravenscraft 1993).
PE and its characteristics have a positive impact on patenting activity (Ughetto 2010; Lerner,
6
Sorensen, and Stromberg 2011; Amess, Stiebale, and Wright 2015). Increased patenting
activity is strongest in private firms (Amess, Stiebale, and Wright 2015), and firm growth is
strongest in subsidiaries/divisions and private firms (Boucly, Sraer, and Thesmar 2011;
Meuleman et al. 2009), businesses that are most likely to be financially constrained pre-LBO.
Life-cycle/Longevity
There is criticism that the PE business model involves boosting the short-term profit of
portfolio firms and exiting within a short time period. However, studies show a heterogeneous
time to exit by investors; some portfolio firms indeed assume an LBO governance structure for
short periods while others retain it for long periods (Kaplan 1991; Wright et al. 1995). The
mean time to investor exit appears to have increased since the financial crash from a little over
5 years in 2007 to over 6 years in 2013 (Wright 2016).
More recently, there has been a rise in follow-on buyouts e.g., secondary buyouts (SBOs), (and
also third and fourth time buyouts, and so on), where initial investors exit fully or partially to
be replaced by new investors. All or part of the management team may also exit during a
follow-on buyout. In recent years, the annual value of SBOs has been close to that for primary
deals and in some years has exceeded it, notably in 2017 when SBO deals amounted to £14.8bn
compared with £13.4bn for primary deals (CMBOR 2018). Evidence on the overall
performance of SBOs is mixed. While Achleitner and Figge (2014) show improved operational
performance, Bonini (2015), Zhou, Jelic, and Wright (2014) and Alperovych, Amess and
Wright (2013) find that performance deteriorates, Jelic and Wright (2011) find positive and
negative effects, and Wang (2012) finds no effect. Using PE firm level data, Degeorge, Martin
and Phalippou (2016) find that SBOs underperform when they are made by PE firms under
7
pressure to spend capital, but perform as well as other buyouts when the buyer is not under
pressure to spend funds (Arcot et al. 2015).
Critics also suggest that PE-backed buyouts are more likely to fail or enter financial distress as
a result of leverage. Studies in the US (e.g. Hotchkiss, Smith and Stromberg 2012; Cohn, Mills,
and Towery 2014), UK (Wilson and Wright, 2013) and Europe (Tykvova and Borell, 2012)
show that PE-backed buyouts are no more likely to enter financial distress or bankruptcy than
other comparable companies. This is partly due to selecting targets that have strong cash flow
potential to service the debt but also because PE investors are proactive in negotiating the
resolution of distress with creditors. Debt recovery rates of PE-backed buyouts that enter
bankruptcy proceedings are also greater than for non-buyouts (Wright et al. 2014).
The road ahead
PE firms face challenges as the industry matures beyond its initial beginnings as an emerging
and unfamiliar asset class. Below, we outline a research agenda relating to PE firms, portfolio
firms, and individuals. We also discuss data challenges in the conduct of future PE research.
PE firms
Financing
The maturity of the PE industry has changed access to funds for PE firms, and altered the
relationship between LPs, GPs, and portfolio companies (Sensoy, Wang, and Weisbach 2014).
Over the past twenty years many institutional investors have included PE as part of their
portfolios, allowing PE funds to raise large amounts of cash; however, the increased number
of funds makes it hard to find attractively priced companies to invest in (Espinoza 2018). The
massive amounts of existing dry powder, the continuing inflow of funds to the industry, and
8
the resulting competition between LPs to subscribe to the top PE funds, has also raised
questions concerning the scalability of PE (Lopez-de-Silanes, Phalippou, and Gottschalg
2015). Moreover, direct investing by experienced institutional investors apparently produces
better returns than co-investing through PE firms (Fang et al., 2015). Many sovereign wealth
funds (SWFs) are also directly investing in firms, rather than hiring GPs, to avoid management
fees (Wright and Amess 2017). Yet, the literature studying these issues focuses mainly on the
returns of financial intermediaries. Research is needed to explore the strategies GPs adopt in a
mature market rather than relying on past practices. How do GPs cope with increased
competition? How do GPs remain attractive to LPs? How does competition impact PE
investment decisions?
As dependence on debt nears record levels, and aggressive and rapid deal making leads to
soaring prices for companies, a prospective increase in interest rates might lead to a collapse
of highly leveraged PE structures. What is then the impact of a combination of overpricing and
high leverage on LPs returns and the consequences for stakeholders, including: employees,
customers, and pensioners? An emerging trend seems to be for PE firms to attempt to mitigate
these problems by developing proprietary deal flow and concluding so-called ‘bilateral’ deals
between themselves and vendors rather than engaging in auctions. Future research might
usefully explore the extent and effectiveness of such a strategy.
Earlier evidence of outperformance of different types of LPs is no longer apparent. For
example, Lerner et al. (2007) reported the outperformance of endowments as an investor class;
however, Sensoy et al. (2014) challenge this conclusion by documenting endowments’ access
to the best funds, rather than superior skill at picking funds, as likely driving their performance.
Research on investor characteristics suggests that LP size is an influential variable impacting
9
variation in investor behaviour and investor criteria (Da Rin et al 2017). Further research is
needed on the interaction between investor types (e.g. size, location, experience), and their
strategy and performance.
Traditionally, syndication has been analysed in terms of co-investments between PE firms.
Recent years have seen a marked rise in the entry of debt funds that are fuelling market growth
and an increase in leverage in deal structures. What are the implications of increasing leverage
for syndication between traditional PE firms and other forms of fund providers such as SWFs
and debt funds? Does the relatively large size, and hence potentially higher bargaining power,
of SWFs influence PE firm behaviour?
Finally, the evidence reviewed above indicates that overall PE fund performance is not
extraordinary. Large amounts of dry powder and favourable debt market conditions are factors
responsible for intense competition for deals and their soaring prices. It is therefore unclear
whether the PE business model is sustainable. How and from what sources will PE generate
further returns if the aggregate supply of profitable deals does not change over time? If
operational and financial engineering are not enough to create value, what other channels are
available?
Transparency
PE firms have developed a variety of ways to generate revenues. These include management
fees imposed on LPs, as well as transaction and monitoring fees imposed on portfolio
companies (Phalippou, Rauch, and Umber forthcoming). Obscure PE arrangements and
compensation structures seem to create room for various agency issues involving excessive
risk taking (Magnuson forthcoming; Gredil 2017), and misreporting of returns and Net Asset
10
Values, especially during fundraising periods (Barber and Yasuda 2017; Brown, Gredil and
Kaplan forthcoming), and overall reduction in the ways LPs can effectively monitor and control
GPs. A recent EU MIFID 2 initiative (BVCA 2017) now applicable to PE firms operating in
Europe seeks to enhance investor protection, though the consequences of this for LPs, and their
relationship with GPs, are yet to be observed and studied.
Greater transparency is necessary to facilitate new investigations of the agency between LPs
and GPs. Such inquiries can shed light on various contractual issues between different kinds of
investors and PE firms. What terms and provisions are still necessary and which ones are
outdated? Are the contracts ensuring that LPs, who lock their investments for extended periods,
sufficiently protected from the moral hazard of PE managers? Better transparency can also
stimulate the liquidity of secondary PE markets. Is this liquidity valuable to investors, as Bollen
and Sensoy (2016) seem to suggest?
Regional distribution of funding and deals
Regional imbalances in finance provision have been a policy concern because firms with
growth potential can lack investment (Martin et al. 2015; Mason and Harrison 2003; Mason
and Pierrakis 2013). Although much attention has focused on the initial equity gap for small
early-stage firms, there is growing recognition of an equity gap for older firms (Wilson, Wright
and Kacer 2018). PE-backed buyouts contribute to regional growth and regeneration but
evidence is needed on the extent of the gap in provision in different regions. We know that
business angel (Harrison, Mason, and Robson 2010) and venture capital (Mueller, Westhead,
and Wright 2012) investors are prepared to cross regional borders, but analysis is also needed
of the extent to which buyout funding needs to be physically located within a particular region.
Such analysis needs also to explore the role of intermediaries rather than simply finance
11
providers themselves. For example, advisors may often take deals directly to national financial
centres – does this undermine regional financial centres or is it a reflection of the inability of
these centres to fund deals?
Portfolio firms
Deal sources
As we have seen above, the performance evidence on SBOs is mixed but studies typically say
little about the impact of incoming and outgoing board members’ expertise on deal
performance. Do primary (outgoing) PE sponsors sell too early or do follow-on (incoming) PE
sponsors have different skills from those of primary sponsors? This is an important area where
deal-level board evidence is needed since a shift from financial (monitoring) expertise in the
primary buyout to entrepreneurial (value-adding) expertise in the SBO may be required for
further gains to be achieved. Many so-called SBOs are in fact third or fourth time around deals,
but little is known about them. To what extent do consecutive deals simply involve a
continuation of previous strategies, or efforts to be more entrepreneurial, or perhaps
turnarounds of struggling firms?
While private family-owned firms are often viewed as a vendor source with potential for
growth in LBO activity, the volume and value of this potential vendor source generally remains
rather flat. Further, there are instances where founders have bought back for nominal sums the
companies they sold as buyouts because the companies got into trading difficulties. Analysis
is needed of the extent and drivers of this phenomenon. For example, to what extent are trading
difficulties due to the loss of the specific human capital expertise once founders have exited,
or their failure to develop a competent managerial team before selling the business? Is their
12
desire to buyback the company related to altruistic and reputational reasons, which means that
they do not want the business they have been associated with to fail?
Innovation and entrepreneurship
Prior research has found that PE has a positive impact on patenting activity. We have little
evidence on whether this is a result of an increase in R&D expenditure, more productive use
of R&D expenditure, or a more active patenting strategy. An understanding of these issues
would aid interpretation of PE’s contribution to better resource utilisation and/or increased
investment. Increased market size and maturity in the sector will lead to increased PE firm
specialisation with respect to portfolio management. Thus, we could expect to observe specific
PE firm types targeting innovative firms and deals in more innovative sectors.
Sources of post-buyout productivity gains are still unclear. To what extent are they the result
of cost-cutting or improved innovative practices? Research examining a direct link between
innovation and productivity would be useful. In such analysis, distinguishing between product
and process innovation would help identify a potential driver of productivity gains. A link with
process innovation could increase productivity while also cutting production costs. More
informal and managerial innovations beyond formal patenting activity have received limited
research attention.
Internationalization by PE and PE-backed firms
There is an increasing trend of cross-border investing by PE firms, more recently involving PE
firms from developed markets targeting new industry sectors in emerging markets (Wright,
Pruthi, and Lockett 2005; Groh and Liechtenstein 2009). Strategic alliances through coinvestment or joint ventures can help PE firms to strategically position themselves and
13
maximize value in an increasingly competitive global landscape (Roy 2015). Research on both
the historical and forecasted impact of strategic alliances on PE could offer insights into the
industry as a whole, where it is headed, and where it should perhaps be headed. How PE firms
use strategic alliances, especially in a scenario of new regulations in emerging economies such
as restrictions on foreign investors’ equity participation in strategic sectors, or foreign
investment through ‘portfolio investments’ traded on stock, futures or commodities exchanges,
OTC markets, or via clearing and custody systems duly registered with and recognized by local
authorities (Binnie 2013), is a fertile research area. Studies should consider the effect of
different institutional contexts on the types of PE investors that dominate, and the consequent
implications for longevity of investment and performance (Cumming, Siegel, and Wright
2007).
Although there is an extensive literature on exporting propensity and intensity by
entrepreneurial firms (Wright, Westhead, and Ucbasaran 2007), there is limited analysis of
such internationalization behaviour by PE-backed buyouts and whether PE-backed buyouts
differ from other firms in this respect. In principle, a buyout provides incentives for new ownermanagers to be more entrepreneurial in seeking out new revenue sources from international
markets. PE firm involvement may include monitoring to bring financial discipline over the
costs of internationalization as well as expertise and contacts that can facilitate exporting for
the first time or increase the intensity of exporting. Evidence suggests that monitoring, rather
than value-adding inputs, by PE firms is significantly more important for buyouts than for early
stage VC-backed firms in helping internationalize the firm (Lockett et al. 2008). Further
research is necessary to explore pre- and post-buyout dynamics of internationalization. Studies
are also needed to examine the direction and modes of internationalization, and provide insights
14
into the relationship between the type of PE firm investor, as well as the international
experience of portfolio company board members on internationalization.
Individual level
Board, and TMT composition and cognition
Also imperative in the context of a maturing PE industry is an understanding of individuallevel factors differentiating the performance of various PE funds. Future research is needed to
explore aspects of prior entrepreneurial or PE investing experience of individual partners in PE
firms and their role in the exit potential of their portfolio companies.
As portfolio firm founder characteristics influence PE strategies (Gompers et al. 2016), a
related research issue is the nature of portfolio firms’ top management teams (TMTs), and role
of their size and composition on PE firms’ strategies. Additionally, career trajectories of
managers post-exit require examination. There is research on entrepreneurial exit relating to its
drivers and what happens to entrepreneurs after exit (Wennberg et al. 2010). For example,
acquisitions trigger a process of ‘entrepreneurial re-cycling’ in which entrepreneurs use their
newly acquired wealth, allied to the experience they have accumulated, to engage in other
entrepreneurial activities, notably starting new business ventures and investing in other
businesses as business angels or venture capitalists (Mason and Harrison 2006). Beyond limited
indirect evidence that some managers of buyout firms may become serial entrepreneurs by
buying into other businesses post-exit (Wright, Robbie, and Ennew 1997), we have little
analysis of post-exit behaviour of buyout firm managers, either in circumstances of success or
failure.
15
Data challenges
A major problem for PE research concerns the availability of data (Cumming and Johan 2017).
Many studies analysing funds use proprietary private data, making it difficult to verify findings,
as well as possibly being success biased. Analysis of the impact on portfolio firms typically
involves combining at least two datasets, one that identifies deals and the other containing data
(e.g. profitability, employment, and patents) to analyse outcomes from PE-backed deals.
Combining datasets sometimes involves merging on name, which can introduce error unless
other data such as post/zip codes are available. Available datasets may also be biased because
of their reliance on publicly available data; even if they are compiled from thoroughly scraping
the web, non-publicised deals are not captured. These databases are also more likely to identify
larger deals than smaller ones, which introduces further bias.
Government databases can be connected to PE databases, subject to strict confidentiality
conditions. Governments collect a variety of data on firms through comprehensive surveys and
submission of company reports. Detailed survey questions or a requirement in company filings
to provide information on the nature of ownership or organisational change would help
research, which often informs policy. Although many papers have increasingly used worldwide
datasets, exploration of the contextual differences between different countries has been limited.
Most PE studies focus on mature Anglo-Saxon markets and on relatively large transactions. To
some extent this may be down to the coverage of worldwide datasets. Sourcing quality data
from developing countries can be problematic. Further, idiosyncrasies in some countries will
make some research impossible. For instance, Indian firms have no requirement to report
employment data.
Conclusions
16
In this article we have taken stock of the systematic evidence relating to PE-backed buyouts
over the last two decades. We use evidence to debunk myths and explore opportunities for
future research. The PE market has demonstrated considerable resilience and adaptability over
the past twenty years. The now substantial body of evidence relating to the impact of leveraged
buyouts and PE has provided considerable support for both agency-theoretic and
entrepreneurial explanations. The market has matured, and increased competition brings
challenges to fund raisers and value creation in portfolio firms. Nevertheless, the last 20 years
have shown that the PE industry is robust to financial shocks and the business model continues
to evolve, which provides a basis to extend the buyout and PE research programme.
17
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