Information Asymmetry in Education

At this point, I have already discussed the definition of inequality of opportunity and how it is measured, how it is transmitted and affects social mobility, and the empirical evidence for the Spanish case. By looking at the empirical evidence and understanding the transmission mechanisms, we were able to reach some very important conclusions:

• In Spain, we have greatly expanded formal educational opportunities, especially through access to education, but we have not equalised real opportunities for students in the same way.

  
  

• Family background still matters a great deal: it influences educational attainment, occupation, future income, and the ability to move within the education system.

  
  

• Inequality of opportunity is not only economic; it also operates through expectations, guidance, role models, territory, and the information available at key moments.

In principle, it would seem that what causes inequality are issues that other individuals outside the person’s closest environment cannot change, or that would require more appropriate political intervention. And experience, at least in Spain, tells us that intervention may possibly do more harm than good, and that we should not expect a solution to this problem, at least in the short to medium term. However, my view is that, through a reinterpretation of the problem as one of information asymmetry and adverse selection (an economic perspective) it is possible to better understand why we have this problem in Spain and how there could be a short- to medium-term solution coming from the private sector, understood not only as companies, but also as individuals or entities formed by them. To develop this, we will first define what we mean by information asymmetry and adverse selection, and argue why this could be very relevant for trying to address inequality of opportunity in education.

Information asymmetry appears when one party in a relationship or decision has more or better information than the other. In economics, this concept became especially well known through Akerlof’s work on the market for used cars, where he showed that, when sellers know much more about the quality of the product than buyers, the market can function poorly even if both parties act rationally. Applied to education, the idea is quite simple: not all students and families know the education system, its rules, its risks, its pathways, and its possible rewards equally well. Some households know how scholarships work, what choosing Bachillerato or Vocational Training implies, which degrees have certain career prospects, how important a good academic record is, when it is worth moving to another city, or how to take advantage of international opportunities. Other households, even if they value education, simply do not have that information or do not know how to interpret it.

Adverse selection is a possible consequence of that asymmetry. In general terms, it occurs when the lack of information leads to worse decisions or causes certain profiles to be left out of options that could benefit them. In education, this could mean that capable students end up choosing less suitable pathways, give up opportunities because they overestimate their costs, underestimate their own possibilities, or fail to access resources that were formally available to them. The problem is not that they lack talent or do not want to make an effort. The problem is that they make important decisions under conditions of unequal information. And this is especially serious because many educational decisions are made very early, at ages when the student still depends greatly on their family environment, the guidance provided by their school, and the role models they have nearby.

Seen in this way, inequality of opportunity in education has information asymmetry as its main problem because all the relevant mechanisms are closely related to it:

• The fact that a family has more income allows it to obtain better or more resources and face less pressure than individuals from families with fewer resources. It can buy better computers, better backpacks, better comforts, but also more and better access to information, whether through private academies, private tutors, books, or any other resource that provides an informational advantage. Possibly, the most important advantage that money provides in this case is an informational advantage, in several respects.

  
  

• Related to this, attending a public or private school transmits inequality of opportunity due to differences in educational standards, training or selection criteria for teachers, reputation, and access to funding and projects. Although some of these things cannot be addressed through information asymmetry, it is possible to think that it plays a partial role, given that students in private schools tend to achieve better results partly because they have more information about “the rules of the game,” about opportunities that, even if access were open, not all students know about and take advantage of, and they even have specialized counselors for career and educational decisions.

  
  

• Apart from differences in resources, investment, and public and political issues of their own, an important mechanism through which inequality of opportunity is transmitted territorially would be the availability of relevant information. The easiest way to understand this is to think about how many companies or innovation clusters there would be in a less populated area in inland Spain, and to see how this differs from ecosystems such as Madrid or Barcelona. Clearly, the latter have access to talks, company visits, research opportunities in centres of excellence, and other opportunities and resources simply because they are in a large city. Therefore, this produces an important information asymmetry between students from different areas of Spain.

  
  

• Parents’ occupation and education are possibly the clearest mechanisms that can be understood as information asymmetry. If your parents value education differently from others, their cost-benefit analysis will probably differ, and that means you will also have a different view of what you can achieve through education, of the value it has, and so on. Not to mention, of course, that investment in your education will depend on how much they can afford to spend and on the threshold at which, marginally, it no longer makes sense to invest more.

If part of the problem is informational, then not all solutions necessarily have to go through major state reforms, slow legislative changes, or huge increases in public spending. There may be room for faster, more flexible solutions that are closer to the student: guidance platforms, mentoring, alumni communities, clear dissemination of information about pathways, comparison tools for educational options, scholarship support, student and professional networks, or private and social projects that translate the system for those who do not know it.

Figure 1. The diagram summarises how different mechanisms of social background can translate into unequal information, affecting educational decisions and, ultimately, unequal educational and economic outcomes.

Evidently, this does not mean that the public sector cannot do anything. In fact, many times there are already resources, counsellors, portals, scholarships, guides, and public programs designed precisely to inform students. The problem is that, in practice, these solutions often fail for fairly predictable reasons.

1. Updating. The education system and the labor market change quickly: new degrees appear, admission cut-off marks change, scholarships are modified, new career paths emerge, Vocational Training is transformed, and the skills demanded by companies change. However, institutional resources tend to move more slowly: public websites are unintuitive, poorly connected to one another, or seem designed more to fulfill an administrative procedure than to genuinely help a confused student.

   
   

2. Personalization. Many institutions offer generic information: what Bachillerato is, what Vocational Training is, what scholarships exist, what degrees there are, or what the formal requirements are. But real educational decisions are not generic: they depend on family income, academic record, the city where the student lives, whether they can move, their expectations, their risk aversion, their knowledge of the labor market, and their personal preferences. Telling all students the same thing can be useful as a starting point, but it does not solve the main problem: helping each one understand which options make sense in their specific case.

   
   

3. Incentives and follow-up. Publishing a guide, creating a portal, or giving a talk does not necessarily mean that students have understood their options or that they will make better decisions. Public institutions often measure the existence of the resource, not its real impact. That is, they may know that a website exists, that a campaign has been launched, or that guidance sessions have been held, but they do not always know whether that information reached the right student, at the right time, and whether it actually changed anything in their trajectory. In education, information not only has to exist: it has to arrive on time, be understandable, and be actionable.

   
   

4. Fragmentation. Educational information is spread across ministries, autonomous communities, universities, schools, city councils, scholarship websites, Vocational Training portals, guidance services, and specific programs. For a family with educational experience, putting those pieces together may be annoying, but possible. For a family that does not know the system well, it may be simply unmanageable. In that context, inequality appears not because the information is legally hidden, but because it is dispersed, poorly organised, and requires too much prior knowledge to be used.

   
   

5. Closeness and trust. Many students do not make educational decisions only by reading official documents. They make them by talking to teachers, relatives, friends, alumni, or people who have already gone through similar paths. That is why role models matter so much. An explanation given by someone close, who understands the student’s real doubts and can translate the system into practical language, can be much more useful than an institutional guide that is perfectly correct but completely impersonal. This is where the private sector, associations, student communities, alumni, or even individual projects can play a very important role.

Everything discussed up to this point does not eliminate all problems of inequality of opportunity. There are differences in income, school, territory, and family environment that do not disappear simply with better information because they have nothing to do with information. But it can attack a very specific and very important channel. And if we manage to reduce that informational gap, perhaps we can make some opportunities stop being merely formal and start becoming genuinely usable for everyone in the short and medium term, without the need for state intervention.

How can we do this? In reality, the steps are already being taken at the individual level: there are educational content creators, companies/organisations dedicated to providing information and guiding students in different sectors, alumni communities that share their experience, mentors who explain how to access certain opportunities, and platforms that try to organise information that was previously scattered, although not so many in this case. However, the great challenge is to move from isolated initiatives to more accessible, scalable, and reliable systems. And today, we have a unique opportunity thanks to artificial intelligence and the mass adoption of the internet and mobile technology.

In the following posts, I will discuss several possibilities for solving some of these problems, projects that I will develop myself, and I will provide perspectives from other people more closely connected to education-related topics on inequality of opportunity in the education system and the role of information.