Providing effective mechanisms to fight barriers to competition in Mexico

Editor’s note: This post is part of a series showcasing Barcelona GSE master projects by students in the Class of 2015. The project is a required component of every master program.

Fernando Cota

Master’s Program:
Competition and Market Regulation

Paper Abstract:

The project analyses the current legal faculties that the Mexican Competition Authority has to fight and remove barriers to competition. Given the limited powers of the authority and the pervasive character of those barriers and their negative impact on Mexico’s economy, the Authority’s faculties are considered insufficient. Then the project studies the Spanish Ley de Garantía de Unidad de Mercado and how that law provides effective mechanisms to fight some barriers to competition. Finally, considering Mexico’s constitutional and institutional framework, the project proposes some modifications in the Competition Law in order to incorporate those mechanisms.

Read the paper or view presentation slides:


The end of the master’s in two acts

Competition and Market Regulation student Fernando Cota ’15 just finished his master project. Here’s how he celebrated:

One of the perks of studying in Barcelona…

Graduation is right around the corner! Stay tuned in July and August for examples of this year’s master projects.

Photo Diary: Exams Winter 2015

How masters and PhD students are surviving finals this month…

Staking out a cozy corner in the library


It’s all about the snacks


Moments of Zen


A little help from our friends


Have a photo you’d like to share? Email it to or mention @barcelonagse on Twitter or Instagram

Bundling, information and two-sided platform competition – Job Market Paper

authorThe following job market paper summary was contributed by Keke Sun (IDEA). Keke is a job market candidate at UAB. Her research interests include Industrial Organization, Venture Capital Markets and Innovation.

Two-sided markets are economic platforms that connect two interdependent groups of users together and enable certain interactions between these two groups of users. The main characteristic of two-sided markets is the indirect network externalities, meaning that one group user’s benefits of joining one platform depends on the number of users of the other group on the same platform. My job market paper studies the impact of pure bundling and the level of consumer information on two-sided platform competition.

The Story

This paper is motivated by the casual observations from the smartphone operating system industry. The operating system (OS) platform connects consumer and application developers, the major competitors are Android by Google and iOS by Apple. Apple also has its amazing in-house handset, iPhone, it bundles the handset with the OS platform.


The Main Results

The leverage theory has established that, in standard one-sided market, if a firm can commit to pure bundling, when consumers have homogeneous valuation of the bundling product, pure bundling reduces equilibrium profits for all firms. Therefore, bundling is usually adopted to deter entry or lead to foreclosure (see Whinston (1990) and Carlton and Waldman (2002) ). However, in a two-sided market, if a platform could commit to aggressive pricing on one side and gain a larger market share. Hence, it becomes more valuable to the users on the other side. I show that, in the presence of asymmetric network externalities, when consumers have homogeneous valuation of the bundling handset, bundling may emerge as a profitable strategy when platforms engage in “divide-and-conquer” strategy: subsidizing the low externality side (consumers) for participation and making profits on the high-externality side (developers). That is, when the benefits of attracting one extra consumer are very strong, committing to aggressive pricing can be profitable without inducing the exit of the rival.

This paper also studies the impact of the level of consumer information on platform competition and the emergence of the bundling decision. Most literature on two-sided markets assumes that all agents have full information about prices and others’ preferences; therefore, can perfectly predict others’ participation decision (see Rochet and Tirole (2003), Caillaud and Jullien (2003), and Armstrong (2006) etc.). Following Hagiu and Halaburda (2014), I use the setting of a hybrid scenario in which some consumers are informed about developer subscription prices and hold responsive expectations about developer participation, while the remaining consumers are uninformed and hold passive expectations. This setting should be a good fit of a situation where information may be less than perfect for some users on different sides of the platform. For instance, some consumers don’t know how much Apple or Google charges the developers for listing applications. Information intensifies price competition with or without bundling. Bundling is more effective in stimulating consumer demand the larger proportion of informed consumers, but bundling is less likely to emerge as the fraction of informed consumers increases.

Strategy and Policy Implications

From a strategy perspective, this paper shows that both platforms have incentives to affect consumers’ knowledge regarding developer subscription prices. Without bundling, both platforms have incentives to withhold the information because consumer information intensifies price competition on both sides. However, when bundling does occur, the two platforms may have different attitudes towards consumer information. The bundling platform prefers a high level of consumer information because bundling is more effective to stimulate consumer demand. The competing platform wishes to withhold the information as it gets worse off as the level of consumer information increases. This paper also shows that when the network externalities are strong, it is more profitable for the platforms to be more aggressive.

From a public policy perspective, this paper provides recommendations concern bundling and information disclosure. Due to the existence of (positive) network externalities, consumer surplus increases with the number of developers on the same platform. Bundling does not only affect consumer subscription prices, but also affects the perceived quality of platforms as it affects developer participation. It has shown that pure bundling improves consumer welfare mainly because it offers a lower subscription price and more application variety to the majority of consumers. For the same reason, even when bundling implements second-degree price discrimination, bundling still improves consumer welfare. Also, information disclosure unambiguously improves consumer surplus by lowering subscription prices on both sides of the platform and improving developer participation. Thus, information disclosure should be encouraged or mandated for consumer’s sake.

Paper abstract and download available on Keke’s website

The wisdom or stupidity of the crowd(funding)

Pedro Hinojoauthor is a student in the Barcelona GSE Master in Competition and Market Regulation. Follow him on Twitter @pedrohinojo.

Crowdfunding can be defined as the peer-to-peer provision of financial resources, from the crowd to a particular project or venture. This is usually done via online platforms that forego the need of face-to-face interactions, slashing transactions costs and allowing the fundraiser to reach a wider audience.

This phenomenon started with a non-profit orientation, as donations channelled to political or development campaigns. Reward-based crowdfunding became more relevant later on, where a product is delivered to consumers who finance the project pre-development, usually at a discount or with other ‘perks’ (such as limited editions, first releases, recognition or references in the credits). Even if reward-based crowdfunding entails (economic) advantages for the fund providers, it is tagged as non-profit because these consumers value non-economic benefits (Belleflamme et al, 2013), such as the sense of belonging to a community (a reason for the funding scheme’s popularity in creative industries like films, music and videogames). Reward-based crowdfunding is rooted in the marketing concept of crowdsourcing, whereby firms take advantage of the crowd to obtain ideas, feedback, and solutions to corporate challenges (Schwienbacher and Larralde, 2010).

But crowdfunding has become relevant when moving towards a profit and investment orientation, be it credit-based or (notably less frequently) equity-shaped (Wilson and Testoni, 2014). In this fashion it is bound to become an alternative source of finance to the real economy when the traditional banking channel is temporarily subdued after the crisis (if not permanently due to more stringent capital requirements). Furthermore, it should benefit primarily small, nascent and innovative firms (which are among the most credit-rationed), especially when they produce unique goods whose features can be communicated easily through the internet.

Therefore, crowdfunding platforms put in contact a crowd of investors with entrepreneurs whose projects need financing. In principle, crowdfunding allows lenders to receive a (higher, although riskier) remuneration for their investment and entrepreneurs to get (cheaper) credit for their projects. Apart from these pecuniary benefits, the entrepreneurs can also promote their brand and products and engage with potential customers through crowdfunding platforms. Therefore, these platforms become essential not only to minimize intermediation costs but also to generate network externalities that attract good projects and a huge crowd of investors. Furthermore, projects appealing to crowdfunding have less geographical constraints in finding sources of finance than with traditional vehicles (Agrawal et al, 2013).

Nonetheless, crowdfunding comes at a cost for entrepreneurs (Agrawal et al, 2013). First, they lose the contact with rather professional investors, who can provide even more valuable advice than a crowd of individual consumers. Other sources of finance for these nascent or innovative firms, like venture capital or (to a lesser extent) angel investors, do provide some technical advice (beyond the funding) to assess the project’s feasibility (and help to improve it if needed).

Second, they may have to disclose some information in the online platforms, something which could be critical in nascent and creative/innovative activities. If some commercially sensitive information becomes publicly known to some extent, incumbents (less credit-constrained) can adapt these new ideas to their business, hammering potential competition from new entrants.

Crowdfunding also poses market challenges, given that imperfections which affect the financial sector are amplified. In financial markets information is far from perfect because it is both incomplete and asymmetric. Information is incomplete because agents cannot control results with their actions in an environment of risk and uncertainty. This problem is amplified in the context of crowdfunding where small, nascent and innovative firms are involved, with riskier projects (Llobet, 2014).

Moreover, information is asymmetric for borrowers and lenders, leading to moral hazard and adverse selection. Moral hazard arises because once borrowers have received the funds, they have the incentive to misbehave and refuse repayment, while the lenders find it difficult to monitor whether these eventual repayment problems are caused by misbehaviour or pure bad luck. Adverse selection happens because lenders cannot discriminate borrowers’ quality, so they charge a high cost to offset potential losses (or even ration credit), jeopardizing paradoxically the best borrowers.

Again, asymmetry of information may be amplified within the crowdfunding context. Given that lenders are now a crowd, it is very likely that each of them only holds a small part of the total investment, reducing incentives to carefully monitor with due diligence the borrowers’ ex ante quality or ex post conduct. In this case, the lack of geographic bonds enabled by crowdfunding is a hitch for lenders to track borrowers in the post-investment phase (Wilson and Testoni, 2014).

In addition, this crowd of lenders will be composed mostly of non-professional investors, so, even if they devoted time to assess the borrowers’ projects, they could lack the necessary skills. And, finally, a crowd of investors would have to face problems of collective action. Against this backdrop, the borrowers might also find less incentive to repay if they use crowdfunding platforms as a one-off bet to raise funds, without any discipline effect coming from repeated interactions or reputational issues.

Bearing in mind these market failures, there is some room for regulation. Considering some international cases (such as the US, the UK or Spain), the regulatory response usually adopts a paternalistic tone: restrictions to the investment by agents (especially individuals who are non-professional investors) and to the amount a project can raise. Crowdfunding platforms are subject to registry requirements similar to other financial intermediaries, although there may be exceptions for small projects. These exceptions can be sources of distortions if firms scale down their projects to fall below certain thresholds (Hornuf and Schwienbacher, 2014)

In order for public intervention to beat the market, regulation ought to be well targeted. Limits to the exposure of non-professional (low-income) investors are rational given their lack of skills, the risks of herd behaviour, path dependence (Agrawal et al, 2013), and the high risk-profile of these investments (Dorff, 2013). However, setting stringent caps on the maximum raisable amount for projects may squeeze the sector’s (and the whole economy’s) development.

Furthermore, the sector itself can provide some solutions to these market failures. For instance, crowdfunding platforms normally charge a fee for every successful project, (which raised the same or more funds than it had pledged). This strategy gives the platforms the right incentives (skin in the game) to monitor and screen projects, so that small (non-professional) investors are relieved of that assessment.

Besides, most crowdfunding platforms opt for an All-Or-Nothing (AON) or a ‘provision point mechanism’ model, whereby projects which do not raise the amount of funds they had pledged will not receive anything. Platforms opting for the Keep-It-All scheme (KIA, whereby projects receive all the funds they have raised even without having achieved their goal) would see higher funding costs charged to those projects (Cumming et al, 2014), given that underfunded projects (which would still receive the funds in the KIA scheme) have less likelihood to succeed.

To conclude, crowdfunding offers a promising venue to spur innovation, creativity and firm growth. The regulatory response must allow that development while ensuring that no substantial amounts are invested by those individuals lacking the skills and the resources needed to cope with the complex and risky investments (See Kay, 2014, whose contribution also served as an inspiration for the title of this post).

Mexican Energy Reform: A trigger for competition in the Mexican energy sector – Antonio Massieu ’13

Editor’s note: The following post was written by Barcelona GSE alumnus Antonio Massieu (Competition and Market Regulation ’13). Antonio is Senior Associate at Santamarina & Steta S.C. in Mexico City. 

The energy industry in Mexico is experiencing the biggest paradigm shift in the past seven decades, since the oil expropriation in the late 30’s. The energy reform that was recently enacted will dramatically change the way the energy sector is developed in Mexico, meaning the most significant economic happening since the execution of NAFTA, in 1994. Said reform will shake the Mexican energy industry vigorously, transforming a monopolistic sector operated by two state companies that performs the vast majority of the productive sector activities, into an open-market industry where players can freely participate through clear and transparent rules, under the regulation of operators and agencies endowed with broad powers. The profound changes brought by the reform occurred both in the substantive areas of the industry and in the institutional structures that shape the energy sector. In one hand, the new legal framework redefined the way the activities that constitute the productive chains of the hydrocarbons and electricity sectors are carried out; in the other hand, the institutions responsible for supervising and regulating the market performance were considerably strengthened.

Naturally, as a new market emerges, market problems also emerge. Therefore, it will be essential that the new Mexican energy market is wrapped by rules and institutions that seek to correct eventual market failures that arise, and that through their actions, establish an appropriate competitive process that yields benefits to competitors, to final consumers, and of course, to the Mexican State.


Modifications made to the Mexican Oil&Gas sector meant undoubtedly, the most important change in the whole energy industry, as a result of the energy reform. Said sector becomes an open market, where Petroleos Mexicanos (Pemex) –formerly the State-owned company that carried out all Oil&Gas exploration and exploration (E&E) activities, will compete against other players from the private sector. This competitive process is implemented through tenders conducted by the federal government, where both the private sector and Pemex will freely participate, in order to be granted with contracts for substantive E&E activities. Transparency will be an element of the utmost importance during the bidding rounds, since it will secure that Pemex and the private sector compete on equal grounds; in other words, a fair and clean competition process will only be possible as long as the federal government does not favor Pemex –which despite its participation in the open market, will remain as a state owned company- or any other bidder in the development and further resolution of the aforementioned bidding rounds, or allow any anti-competitive practices to take place (such as collusive behaviors among the bidders).

As for midstream activities, the energy reform introduced a new market dynamic that will foster a more effective and fair competition process. Currently, the activities of transport, storage and distribution that are developed through the pipeline grid will be operated and managed by a new government agency, the National Center for Control of Natural Gas (CENAGAS). This entity will assume control and ownership of all pipeline infrastructure that today belongs to Pemex[1] – which, due to its economic features, constitutes a natural monopoly-, and administer the activities carried out there. The CENAGAS will operate as a figure internationally known as an “ISO” (independent system operator), and will be obliged to fulfill important mandates, such as granting open and non-discriminatory access to the grid to all participants (including Pemex) and avoid problems of vertical integration in regulated activities, among others.

[1] More the 75% of the pipelines in Mexico belong to Pemex.


The electricity sector in Mexico will also be transformed significantly by means of the energy reform, since it will stop being a vertically integrated industry where a State-owned company (Federal Electricity Commission “CFE”) conducts all activities of the productive chain industry, in order to be transformed into a liberalized sector where undertakings (both public and private) will compete against each other in an open market, aiming to satisfy the needs of consumers.

For such purpose, a wholesale spot market will be put into place. Said spot market will seek to replicate international models in order to foster competition among different companies that will be able to generate, trade and supply energy to final users. Domestic supply will be carried out by CFE –at a regulated tariff-, acquiring energy through tender processes, while industrial supply will happen through a free competition process, where generators, suppliers and consumers will complete transactions at market, non-regulated prices. In order to regulate the new market structure, the Government created the National Center of Energy Control (CENACE), which will serve as an ISO, aiming to operate and control the electric grid.

CENACE will be in charge of different relevant tasks, such as the granting of open access to undertakings participating in the electric industry, controlling the allocation of power into the grid (both demand and supply), surveilling the continuous bids posed by market participants into the spot market (in order to avoid coordinated anti-competitive effects) and coordinating the transactions executed by the market players, as well as the configuration of the market, in terms of possible vertical integration in the performance of activities by companies. This market will be particularly interesting in terms of competition policy, since CENACE will be in charge of regulating the operation of a natural monopoly –the electric grid- which is owned by one of the participants of the market, the CFE, which will compete against other undertaking in the activities of generation and supply of power; this represents a very unique case in the world, and will be added as one of the main challenges that Mexican authorities will face with the implementation of the energy reform.

Regulators and entities of the energy sector

One of the great challenges of the reform is to establish an institutional framework capable of operating the new emerging energy markets in Mexico, in which various companies (public and private) will interact in a competitive environment, hitherto unknown for the country. Of course, in order to accomplish this goal, it is imperative to create strong institutions, with high degrees of independence, able to issue clear regulations and impose heavy penalties to regulated undertakings.

Both regulatory agencies[1] and ISO’s will need to follow closely the development of the energy markets, and make sure that competition is achieved. Unlike what happened with the IFETEL, which is the independent body responsible for regulating the telecommunications market in Mexico, regulators and ISO’s in the energy sector were not endowed with broad powers in competition policy matters. In this sense, and despite some of its powers seek to create conditions of competition, these institutions will have to interact closely with the Federal Competition Commission, in order to timely detect and punish anti-competitive practices in the industry, in order to correct market failures and increase consumer welfare.

[1] Regulatory Commission of Energy and National Hydrocarbons Commission


Energy reform emerges as a great opportunity for Mexico to join the global trailblazers in the sector. At first glance, the work has been done satisfactorily, as sufficient legal and institutional conditions for implementing competitive markets were generated, where agents will interact correctly, generating consumer welfare. However, the correct development of the industry will depend not just on the rules and the institutions itself, but on the right behavior of both authorities and undertakings. Possibly the only advantage that Mexico has to be the second-to-last country in the world to undertake an opening process of this nature, is that it had the opportunity to study similar processes, and learn from positive and negative experiences in other countries. Now the challenge is to test that knowledge, and build a successful energy sector that can boost growth in the country.

Listen to a radio interview with Antonio Massieu on hydrocarbons in the Mexican energy sector (in Spanish, September 2014)

1 More than 75% of the pipelines in Mexico belong to Pemex.

2 Regulatory Commission of Energy and National Hydrocarbons Commission

Collusion in auctions and the role of communication to sustain it: a microeconomic approach

Editor’s note: This post is part of a series showcasing Barcelona GSE master projects by students in the Class of 2014. The project is a required component of every master program.

Collusion in auctions and the role of communication to sustain it: a microeconomic approach


Giuseppe Leonello

Master Program:

Competition and Market Regulation

Paper Abstract:

Collusion among bidders in auctions is an important topic in competition economics since it decreases the seller’s revenues and the social welfare. In this project the focus will be on the role of communication among bidders for the incentives to collude.

In the literature, communication among bidders has always been treated as an exogenous variable. This assumption will be relaxed and the choice of communicate will be endogenous and function of the expected collusive profits and the expected costs of collusion represented by the risk to be catch and punished.

The auctioneer can monitor the market and the auction process to discover the collusive agreement, exerting a costly effort.

The model will find the minimum level of effort needed to make bidders not having incentives to communicate and collude. However, the auctioneer will exert this level of effort only when the expected gains are higher than expected costs. For this reason, in some case the optimal choice for the auctioneer will be to lead bidders to collude even if this will not maximize the social welfare.

Government interventions to reach the not collusive equilibrium will be discussed. In particular, they will take the form of an increase in the punishment when bidders are discovered to collude and the subsidization of the cost needed to exert the optimal level of effort.

Competition and the Hold-Up Problem – Guillem Roig ’08

Editor’s note: The following post was written by Barcelona GSE alumnus Guillem Roig (Competition and Market Regulation ’08). Guillem is currently a PhD student at the Toulouse School of Economics in France.

Competition and the Hold-Up Problem: a Setting with Non-exclusive Contracts

The paper

Why some of us do not spend the desired time and resources to nurture and improve the relationship with our parents, friends or business partners? Because once the time and resources are spent, we are afraid of possible opportunistic behavior. Economists frame opportunistic behavior in simple trading relationships where a buyer and seller are able to undertake specific investment into the exchanged good. Fisher Body, a manufacturer of body cars, refused to locate their body plants adjacent to General Motors assembly plans, a move that was necessary for production efficiency.

To fight opportunistic behavior we cannot rely on “good faith” alone, but we need to establish institutions to reduce its occurrence. Many modern societies have written laws, neutral courts of justice and arranged reasonable rules to resolve disputes. Yet, what happens when a sound and solid institutional system does not exists? In this paper, I consider situations where investment contracts cannot be enforced and I explore how the introduction of competition among the sellers of an homogeneous good gives the right incentives to undertake profitable specific investment.

In these types of models, the equilibrium payoff of the sellers is a measure of their indispensability, which directly depends on the outside option available to the buyer. The trading partners invest efficiently only when the trading outcome is the most competitive. When competition is the most severe, investments do not effect the outside option of the buyer and each seller appropriates his marginal contribution of the trading surplus. Any other equilibrium gives the seller incentives to over-invest. Sellers’ investments not only generate larger trading surpluses but also reduce the outside option of the buyer. The asymmetric partition of the trading surplus generates investment inefficiencies.

In a related article, I study how the configuration of the market structure is affected by the way an endogenous number of suppliers compete in the market. With non-exclusive trade and a common buyer undertaking cooperative investment, I obtain a direct link between the level of competition and investment that affects the market structure of the supply side of the market. Trading outcomes that are more competitive are associated with a larger and more homogeneous distribution of investment among active suppliers, and an equilibrium with no investment might occur in trading outcomes that are less competitive. Buyer’s investment works as a mechanism to incentivize competition and this becomes more effective the more competitive the trading outcome is. The paper gives a theoretical insight for the coexistence of first with second tier suppliers and predicts situations where investment does not materialize.

Download the full working paper [pdf]

The process

I started this project in September 2012, after a short visit at the University of Arizona where I meet a group of law academics working on the design of trading contracts. I soon became interested in topics of contract theory and organization design and researched in the area of transaction cost economics.

The upturn of the project came in May 2013 when I benefited from an ENTER exchange program at the Universitat Autònoma de Barcelona. I presented my work in a series of seminars and the suggestions of Prof. Inés Macho and David Pérez Castrillo were invaluable at that stage of the project. I dismissed the design of complex trading contracts and I went back to basics. I concentrated on framing the problem of transaction costs without any established formal institution.

In my model, I never talk about investment contingent contracts or contract enforceability, I only allow for the interaction of economic agents in the market. In many situations, we might not need a complex and sophisticated institutional framework but we just must allow “the invisible hand” to function.

The working paper series of the Toulouse School of Economics are free and accessible online, so for further information please check out my articles here!

Multimarket Contact and Collusion in the Ecuadorian Pharmaceutical Sector – Master Projects 2014

Editor’s note: This post is part of a series showcasing Barcelona GSE master projects by students in the Class of 2014. The project is a required component of every master program.

Multimarket Contact and Collusion in the Ecuadorian Pharmaceutical Sector


Jerónimo Callejas and Igne Grazyte

Master Program:

Competition and Market Regulation

Paper Abstract:

The paper analyses the effects of multimarket contact on prices in the Ecuadorian pharmaceutical sector and its capacity to serve as a tool to facilitate collusion. We estimate the effect that the multimarket contact has on firms’ price setting behaviour by applying multimarket contact models and simple econometric techniques. Our findings show that multimarket contact has a positive effect on multivitamin prices in Ecuador and could indeed be helping to sustain collusion between firms.


We have tried to estimate the possible effect that multimarket contacts might have on prices and collusion in the Ecuadorian pharmaceutical industry. For the purposes of this paper we have chosen to limit our analysis and only focus on the market for multivitamins defined at the 4th ATC level. To test our predictions we tried to replicate simple techniques used by Ciliberto and Williams (2013), Evans and Kessides (1994) and Coronado (2010). We have constructed a multimarket contact index and estimated its effect on prices by using IV and then Panel Data with fixed effects estimations and also correcting for endogeneity.

As seen in section 5, our model gives robust results and provides a reasonable confirmation of our expectations: the coefficients predicted by the two models (IV and panel data with fixed effects) have the correct sings and are highly significant. Our results show that the IV estimation alone is insufficient to successfully solve all endogeneity issues, however we find that using panel data with fixed effects and also instrumenting endogenous variables (MMC) we can successfully remove the endogeneity problem from the proposed regression and obtain unbiased estimates. Our analysis shows that average multimarket contact index has a significant positive effect on price, thus confirming our predictions that the contacts between firms in different product markets can lead to higher prices for pharmaceutical products. Although we believe that this result could be indicative of possible collusive practices in the sector, the actual existence of collusion could only be confirmed by direct evidence, such as direct contacts between firms with the aim of setting prices or sharing markets.

Due to time constraints we were only able to conduct our analysis in one market and using only simple estimations and models of multimarket contact index. Therefore possible future extensions to this paper could include estimating the effect of the multimarket contact index in other markets, possibly taking into account both private and public markets; or to estimate the effect of multimarket contact by using more complex models, such as nested logit model used in Ciliberto and Williams (2013).

Read the full paper or view slides below: