You buy a charger you already have. A jacket that looks like three others hanging unworn in your closet. An air fryer when the old one still works perfectly. None of this is a character flaw. It’s the expected result of seventy years of research in psychology, sociology, and product design dedicated, with considerable precision, to making that happen.
Remember that on Pensar es Gratis we only cite reliable data and sources that pass our content filter. At the end of each post there’s a practical guide on the topic if it makes sense for one to exist.
The fear we don’t see
In 2004, Jamie Arndt, Sheldon Solomon, Tim Kasser, and Kennon Sheldon published an article in the Journal of Consumer Psychology connecting two fields that didn’t usually speak to each other: fear of death and purchasing decisions [1]. The theory they started from, terror management theory, holds something simple: humans are the only species aware that it will die, and that awareness generates an anxiety that needs to be managed. We manage it by clinging to a culture, to a shared system of values, and by raising our self-esteem within that system.
Arndt and his team showed that reminding someone of their own mortality — a question about how they feel about dying, a vignette of an accident — measurably increases their interest in money, status, and branded objects. It’s an effect replicated in the lab. Kasser and Sheldon had already anticipated this in 2000, when they found that participants reminded of their mortality raised their expectations of future earnings and their desire to spend, compared to those who received no such reminder [2].
The explanation isn’t that money soothes the fear of dying. It’s that owning things your culture values confirms you as a full member of that culture, and that belonging functions as a form of symbolic immortality: you will keep existing in what you leave behind, in what you represent, in your material legacy.
A 2025 meta-analysis on terror management theory in the consumer domain found a small but positive overall effect (g = 0.21) of mortality salience on consumer responses, though the authors themselves note that the literature is “very scattered” and “inconsistent” on several points [3]. The mechanism exists, but it isn’t a lever that fires with the same strength every time.
This mechanism can also be observed in reverse, with fairly concrete recent data. A 2025 study with 342 Chinese university students during a COVID-19 outbreak found that mindfulness, measured with a validated scale, reduced panic buying, and that effect ran through two pathways: less feeling of social alienation and less death anxiety [4]. The more mindfulness participants reported, the less activated their fear machinery was, and the less compulsively they bought. A global health crisis isn’t required for the mechanism to activate, but in one it shows up much more clearly.
Push notifications, urgency, and FOMO
Fear of missing out isn’t an abstract emotion: it has a measurable signature. A 2025 study with 258 Romanian students from the University of Timișoara found very strong correlations between FOMO and sensitivity to push notifications (r=0.87) and urgency messages (r=0.86), and those two variables predicted online purchase frequency better than FOMO itself [19]. The design is correlational, not experimental, so it doesn’t prove causation, but the pattern is consistent with what we already know about emotional regulation: the notification doesn’t inform you of anything, it triggers an alarm. The running timer, the “today only,” the “3 left” aren’t interface decoration. They’re the same existential anxiety mechanism that Arndt and Kasser documented in the lab, just manufactured at industrial scale and delivered to your phone screen every few minutes.
Manufactured scarcity: Barton’s meta-analysis
The scarcity tactic has meta-analytic backing. Barton, Zlatevska, and Oppewal published a 2022 meta-analysis in the Journal of Retailing covering 416 effect sizes from 131 studies confirming that scarcity messages — “only a few left,” “limited-time offer” — measurably increase purchase intent [20]. The study breaks the effect down by product type and involvement level, finding that demand-based scarcity works better for utilitarian products. It’s not a generic trick that works the same way in every context. It’s a calibrated tool. And like every calibrated tool, it has a maker who knows exactly which lever to pull so that you press the buy button.
Advertising, social media, and the materialist mediator
The most-repeated statistic about omnipresent advertising — that we see 5,000 or 10,000 ads a day — has no traceable source. Bauer and Greyser had 750 people count ads in 1968 and got an average of 76 a day; a replication using the same methodology in 2007 yielded 98.5; the most commonly cited estimate after that is around 362 exposures, of which people recalled having noticed 153 [21]. The “10,000” figure looks like a poorly transmitted citation that’s been repeated without anyone re-measuring it. That doesn’t mean advertising hasn’t multiplied — programmatic ad-buying and targeting really are new — but the specific number is marketing folklore. What is documented is the mechanism. A 2024 Saudi study with 487 university students, using structural equation modeling, found that both TV advertising and social media use predict compulsive buying, and that materialism mediates that relationship [22]. Advertising doesn’t buy for you. It feeds the trait — materialism — that does. It’s the loudspeaker that amplifies the psychological mechanisms we already know about, not a separate factor that replaces them.
The Diderot effect
In 1769, philosopher Denis Diderot received a luxurious scarlet robe as a gift. Placing it in his study, he noticed it clashed with the rest of his furniture, old and worn. He wrote an essay about what happened next: he changed the desk, then the chairs, then the tapestries, chasing an aesthetic coherence that the robe had broken. He ended up in debt over a gift.
Canadian anthropologist Grant McCracken took that anecdote in 1988 to name a consumption pattern now known as the Diderot effect [5]. The central idea: the objects you own form coherent sets tied to your identity, what McCracken calls “Diderot unities.” When an object enters that doesn’t fit — more expensive, newer, more elegant than the rest — you don’t enjoy it in isolation. What you feel is that everything else has become outdated, and that discomfort triggers a chain of purchases aimed at restoring the lost coherence.
Furniture stores have been deliberately exploiting this for decades: they sell products in already-coordinated sets — sofa, table, lamp, rug — so that buying a single isolated piece looks visually incomplete. McCracken went on to advise brands like IKEA on exactly this mechanism.
It could be that social media has accelerated the same process at a different scale: every post from an aspirational profile functions as a miniature Diderot unity, and updating a single element of the “look” — a bag, a pair of sneakers — pushes toward renewing the rest so the image becomes coherent again.
Buying to feel something different
Selin Atalay and Margaret Meloy, in a study published in Psychology & Marketing in 2011, asked a group of participants to keep a consumption diary for two weeks [6]. They found that low mood consistently predicts the purchase of small, unplanned indulgences. Nothing surprising there. What they didn’t expect is that those purchases worked: most people reported a sustained mood improvement over time, without the regret or guilt usually assumed to come with the package. Buying to regulate an emotion isn’t necessarily irrational. The problem arises when that mechanism becomes the primary, or only, way of managing emotion.
That’s where compulsive buying enters as a clinical category. Aniko Maraz, Mark Griffiths, and Zsolt Demetrovics published a 2016 meta-analysis in the journal Addiction pooling forty studies and nearly 32,000 people across sixteen countries [7]. The pooled prevalence: around 5% of the general population shows a compulsive buying pattern, with variation depending on the measurement instrument used and whether current or lifetime prevalence was asked about. That’s a figure comparable to other well-established behavioral addictions, like pathological gambling.
In specific samples of shoppers, prevalence rises to 16.2%, more than triple the general population rate [7]. In other words, when the environment is designed to stimulate buying — malls, apps, notifications — the percentage of people developing compulsive patterns spikes.
Planned obsolescence
The suspicion that manufacturers design products to fail right after the warranty expires has been circulating for over a century. In 1924, a group of lightbulb manufacturers — Osram, Philips, General Electric, and others — founded the Phoebus cartel in Geneva and agreed to limit bulb lifespan to 1,000 hours, when bulbs lasting 2,500 hours already existed [8]. The cartel operated until 1939. That’s the documented origin of planned obsolescence, and the practice hasn’t disappeared. It’s just become more sophisticated.
In 2016, the Öko-Institut and the University of Bonn, commissioned by Germany’s Federal Environment Agency, published the most thorough study to date on the topic, analyzing data on appliances and consumer electronics from 2004 to 2012 [9]. The result doesn’t confirm the conspiracy theory as it circulates: the researchers found no evidence that manufacturers introduce deliberate, calculated defects to force replacement. What they did find is just as uncomfortable. The real lifespan of most product categories has shrunk, and not always due to breakage. For televisions, 60% were replaced at five or six years while still working, simply because the consumer wanted a better model. For washing machines, refrigerators, and dryers, the percentage of units replaced due to failure before five years already exceeded 8%, and that figure was rising.
A 2025 Bocconi University study on the Italian smartphone market found that one in three smartphones is replaced early, often while still working perfectly [10]. Obsolescence is no longer just physical — non-replaceable batteries, soldered components, proprietary screws — but also software-based: updates that slow down older devices or limit their compatibility. Apple was called out in 2017 for slowing down older iPhones through iOS updates, and Samsung was fined in 2018 by Italy’s competition authority for similar practices.
In a fire station in Livermore, California, a lightbulb has been burning almost continuously since 1901: the Centennial Light, handmade by the Shelby Electric Company, recognized by Guinness World Records as the longest-lasting bulb on the planet [11]. It started out at sixty watts and today runs at about four, which probably explains much of its longevity. No one decided in 1901 that bulbs should last a short time; that incentive came later, with the mass expansion of the electrical market and competition to sell more units, not fewer.
The aggregate result at a planetary scale is measurable. The 2024 Global E-waste Monitor, produced by the United Nations through UNITAR and the International Telecommunication Union, recorded 62 million tonnes of e-waste generated in 2022, 82% more than in 2010 [12]. Only 22.3% of that mass was documented as collected and recycled. The projection for 2030 is 82 million tonnes.
The taste that reveals class
Between 1963 and 1968, Pierre Bourdieu ran two large-scale surveys on the cultural tastes of French society: what music people listened to, what they ate, what clothes they wore, what photographs they considered beautiful. The result, published in 1979 as Distinction, remains one of the most cited sociological studies of the twentieth century [13].
Bourdieu’s thesis has three pieces. Cultural capital is the set of knowledge, codes, and credentials — from knowing which fork to use to holding a university degree — that isn’t bought directly with money but is transmitted and accumulated as a parallel form of wealth. Habitus is the internalized, almost automatic disposition through which each person perceives an object or practice as “good,” “vulgar,” or “sophisticated,” a disposition formed from childhood according to one’s social class of origin. The field is the social space where different types of capital — economic, cultural, social — compete for recognition. The uncomfortable conclusion: what we call “good taste” isn’t a universal quality of the object, it’s a class signal that works precisely because it presents itself as natural and disinterested.
This didn’t remain a museum-piece theory from 1960s France. Dutch researchers, using a 2011 survey with almost 3,000 participants, found that cultural capital predicts healthy food consumption above and beyond income level and social capital, replicating Bourdieu’s mechanism outside France and decades later [14].
Perhaps recommendation algorithms on platforms like Spotify or Netflix build, without meaning to, something like a digital habitus: a set of taste dispositions no longer transmitted only at the family table or in school, but in a system that decides what to show you first based on what you’ve already consumed. No one has yet measured whether that loop reproduces the same class lines Bourdieu described or dissolves them by mixing references from every background equally. It’s a conjecture, not a finding, but the underlying mechanism — an external system shaping what feels “natural” for you to like — is structurally the same one he described almost half a century ago.
Practical guide: what you can do
The good news is that the mechanisms that lead you to overspend are known, and that means they can be countered. Not with infinite willpower, which is a limited resource, but with design.
The 72-hour rule. When you feel the urge to buy something unplanned, wait three days. The Diderot effect and emotion-regulation buying operate in the short term. The anxiety driving you to buy will subside on its own if you don’t feed it. A study on compulsive buying found that emotional dysregulation is a key mediator, and that interventions aimed at improving emotional regulation reduce symptoms. Waiting is a cheap form of regulation.
Check the context, not the product. The Diderot effect doesn’t start with the product you buy, but with the imbalance you perceive in your surroundings. Before buying something new, ask yourself: is this going to make me want to change other things too? If the answer is yes, you have two options: don’t buy it, or consciously accept the chain and set a budget limit for it from the start.
Know your habitus. You’re not going to change your tastes overnight, but you can observe them with some distance. Why do you like what you like? How much of that comes from your family, your environment, from what you believe you should be? Bourdieu didn’t ask you to give up your tastes, he asked that you know where they come from. That awareness doesn’t eliminate social reproduction, but it gives you room to maneuver.
References[1] Arndt, J., Solomon, S., Kasser, T., & Sheldon, K. M. (2004). The Urge to Splurge: A Terror Management Account of Materialism and Consumer Behavior. Journal of Consumer Psychology, 14(3), 198–212.
[2] Kasser, T., & Sheldon, K. M. (2000). Of wealth and death: Materialism, mortality salience, and consumption behavior. Psychological Science, 11(4), 348–351.
[3] Arendsen, J. L., Brugman, B. C., van Koningsbruggen, G. M., & Fransen, M. L. (2025). Terror Management Theory in the Consumer Domain: A Systematic Review and Meta-Analysis. International Journal of Consumer Studies, 49(3).
[4] Tan, Y., Huang, R., & Chen, Z. (2025). How Does Mindfulness Alleviate Panic Buying. Psychology Research and Behavior Management, 18, 901–915.
[5] McCracken, G. (1988). Diderot Unities and the Diderot Effect. In Culture and Consumption. Indiana University Press.
[6] Atalay, A. S., & Meloy, M. G. (2011). Retail therapy: A strategic effort to improve mood. Psychology & Marketing, 28(6), 638–659.
[7] Maraz, A., Griffiths, M. D., & Demetrovics, Z. (2016). The prevalence of compulsive buying: A meta-analysis. Addiction, 111(3), 408–419.
[8] Krajewski, M. (2014). The Great Lightbulb Conspiracy. IEEE Spectrum.
[9] Prakash, S., Dehoust, G., Gsell, M., Schleicher, T., & Stamminger, R. (2016). Einfluss der Nutzungsdauer von Produkten auf ihre Umweltwirkung. Öko-Institut e.V. / Umweltbundesamt.
[10] Corrocher, N., & Paganuzzi, S. (2025). Planned obsolescence and smartphone replacement. Telecommunications Policy, 49(4), 103022.
[11] Guinness World Records (2025). On the bright side, famous light bulb still shining after over 100 years in fire station.
[12] Baldé, C. P., Kuehr, R., et al. (2024). The Global E-waste Monitor 2024. Geneva/Bonn: ITU / UNITAR.
[13] Bourdieu, P. (1979). La Distinction: Critique sociale du jugement. Éditions de Minuit.
[14] Kamphuis, C. B. M., Oude Groeniger, J., & van Lenthe, F. J. (2018). Does cultural capital contribute to educational inequalities in food consumption in the Netherlands? International Journal for Equity in Health, 17(1), 168.
[19] (Romanian FOMO/push-notification study, 2025, University of Timișoara)
[20] Barton, B., Zlatevska, N., & Oppewal, H. (2022). Scarcity tactics in marketing: A meta-analysis. Journal of Retailing.
[21] Bauer, R. A., & Greyser, S. A. (1968); 2007 replication; subsequent exposure estimate.
[22] (Saudi study, 2024, TV advertising, social media, and compulsive buying)