I was nineteen when I first realised that my phone was listening to me. I’d been discussing a weekend trip to Edinburgh with a friend — not searching, just talking — and within hours, my social media feeds were flooded with ads for hotels, train tickets, and walking tours of the Royal Mile. The coincidence was too precise to ignore. I wasn’t frightened; I was fascinated. How did a conversation over coffee turn into a targeted advertisement? What invisible mechanisms had interpreted my casual words and transformed them into a commercial opportunity? I felt like I’d glimpsed the hidden architecture of modern marketing — a vast, intricate system of data collection, algorithmic prediction, and psychological persuasion that operated just beneath the surface of everyday life. And I wanted to understand how it worked, not just as a consumer, but as someone who sensed that the rules of marketing had fundamentally changed and that the implications went far beyond selling products.
That moment of curiosity shaped my entire academic path. I enrolled in marketing modules, devoured books on consumer behaviour, and became increasingly interested in the ethics of digital targeting. But when the time came to choose a dissertation topic, I was overwhelmed by the sheer number of possibilities. I could write about influencer marketing, about the psychology of brand loyalty, about the effectiveness of sustainability claims, about the role of nostalgia in advertising, about the impact of AI on content creation. I needed a specific, researchable question. I began by exploring what other students had already investigated, and I came across a curated collection of marketing dissertation topics (you can browse them here: https://premierdissertations.com/marketing-dissertation-topics/) that helped me map the terrain. Some projects examined how personalisation affects consumer trust, others analysed the effectiveness of purpose-driven branding, and a few explored the line between persuasion and manipulation in digital advertising. That breadth gave me the confidence to settle on a question that felt both personal and timely: how do consumers perceive personalised advertising based on inferred data versus explicitly provided data, and does the method of data collection affect their trust in the brand?
Once I had my direction, I designed a mixed-methods study. I surveyed over two hundred participants, presenting them with scenarios where products were recommended based on their browsing history, their purchase history, or data they hadn’t knowingly shared. Then I interviewed a smaller group in depth, asking them to describe how these different forms of personalisation made them feel. The responses were complex and often contradictory. Many participants appreciated the convenience of relevant ads but felt unsettled when they couldn’t explain how the advertiser knew what they wanted. One woman told me she’d started receiving ads for pregnancy tests before she had even told her partner she was expecting — the algorithm had inferred her condition from changes in her shopping habits before she had consciously acknowledged it. “It felt like a violation,” she said, “like someone was watching me through a window I didn’t know was open.” My dissertation argued that marketers need to move beyond a narrow focus on effectiveness and consider the psychological impact of their targeting practices. Transparency and consumer control, I concluded, are not just ethical niceties; they are becoming essential to maintaining trust in an age where the boundaries between public and private, shared and inferred, are increasingly blurred.
Writing that dissertation changed the way I see every ad, every personalised email, every product recommendation that appears on my screen. Marketing, I came to believe, is not just about selling; it’s about the delicate, often invisible relationship between brands and the people they seek to influence. If you’re considering a marketing dissertation, I’d encourage you to start with a moment that made you pause — an ad that seemed to know too much, a campaign that moved you unexpectedly, a brand that earned your loyalty or lost it. The best research questions grow from genuine curiosity about the forces that shape our choices as consumers. Then explore what other students have already done, and let their work help you shape your own inquiry into something that could, in its own small way, make marketing a little more honest and a little more human.