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Yifei Wang defends thesis on regional investment and labour markets

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Yifei Wang has completed her PhD in economic geography with a thesis titled R&D and Machinery in Regions: Investment and Labour Market Dynamics. The work explores how regional investment shapes job creation and how related skills are sourced, developed and diffused.

What is your research about, and what made you interested in this topic?

‘I study how investment in research, development and machinery affects regional labour market dynamics, particularly how they influence job creation, skill demand, worker performance, and regional inequalities. My interest in this topic goes back to my master’s thesis on foreign direct investment and how firms choose investment locations. When I moved here, I discovered that Sweden has high-quality microdata on firm establishments and individuals, and detailed research and development survey data. This opened up the possibility to study not just where investments go, but what they actually do, and eventually motivated me to explore how investment transform regional labour markets.’

What are the main findings of your thesis?

‘My research shows that investment shapes regional labour markets in ways that go far beyond job creation: it attracts skilled workers, fosters learning, and diffuses knowledge through mobility, leading to qualitative shifts in workforce capabilities. These effects, however, are unevenly distributed. Regions with strong skill bases are better able to absorb R&D and machinery investments, creating self-reinforcing cycles of human-capital growth, while weaker regions face skill constraints, limited learning opportunities, and potential talent outflows.’

Why did you choose to study at the University of Gothenburg?

‘I studied Human Geography and Regional Planning at East China Normal University, before moving to the Netherlands to complete a master’s degree in urban and economic geography at Utrecht University. While writing my master's thesis, I decided to pursue a PhD and began looking for opportunities worldwide. This position in Sweden matched my interests well. I had heard great things about the Nordic countries and their welfare systems, as well as the possibility of earning a decent salary as a doctoral student. I had visited Gothenburg before and had formed a positive impression of the city, Sweden, and the economic geography research group.’

What were the main things you learnt during your time as a doctoral student?

‘If I could say something to myself four years ago, it would be: “Cherish your time, take it easy and don't worry too much. Things will work out!” 
When I started, I often waited for instructions and expected someone to tell me what to do. Over time, I have learned to be more independent and take the initiative, as well as challenging the opinions of supervisors and others.’ 

How has your time in Sweden been?

‘Living here has made me a much more relaxed person. I’ve learned that it's not the number of work hours that's important, but how to use my working hours more efficiently. The lack of daylight in winter can be challenging, but it gives me time to take up new hobbies such as ice skating, hiking in the forest, bouldering and badminton, which I think is great.’ 

What are your future areas of interest for research?

‘I’m looking for postdoctoral opportunities in labour market transformation related to AI and firm strategies.’