Our Head of Department, Carlos Carrillo Tudela discussing why study in the Department of Economics at Essex? https://t.co/8rQIaBLUhl

🎉 We’re ranked 9th in the Guardian University Guide 2026 – our 3rd year in the UK top 10! Plus, we’re #1 for value-added for 3 years running. 💡 At Essex, our students gain the skills, experience & connections to shape the global economy. 🌍✨ #Essex #Economics #WeAreEssex

We’re thrilled to congratulate Prof. Carrillo Tudela, our Head of Department, on becoming a Fellow of the @RoyalEconSoc This prestigious honour recognises his outstanding contributions to economics and dedication to shaping future generations. #RoyalEconomicSociety #Economics

More in the paper, just one more thing here. We can compare networks during work from office, work from home, and hybrid Networks shrink during hybrid. People have fewer coauthors. Bridging decreases. Effect of WFH/hybrid on innovation in another paper: https://t.co/DnTwLVOATy

At the same time, having someone with high BC in the network is valuable for innovators: Having a top 10% bridger in my network increases my chance of getting idea approval by 3.4 percentage points. So bridging provides a positive externality. Bridgers link people and expertise

That's because degree and BC are positively correlated: employees with lots of coauthors also tend to bridge more between clusters of different employees. Our explanation: Negative effect of BC holding degree constant indicates that bridging is individually costly. 9/n

Bridge centrality (BC): How much an employee bridges between clusters of others. In the graph below, black dots have highest BC In the regression, BC has negative effect on innovation quality, holding degree constant. But positive effect if not controlling for degree 8/n

Regressions. Effect of individual network position: higher degree (more coauthors) is better for innovation quality. An additional coauthor increases acceptance chance by 2.4 percentage points on average, ditto for chance of good client rating. Network size no significant effect.

Descriptive result: the mode network is a network of size 1. That is, innovators who don't collaborate. Really large networks are rare. So the innovation process in the firm -- a very large firm -- is divided in smaller local networks. Here's the distribution: 6/n

Estimation: We look at the networks in discrete 6-month time windows. Then we follow the same employee over time. Using the variation in network position for the same employee over time, we estimate the effects of network position on innovation quality. 5/n

Collaboration: Ideas can be submitted by up to 5 employees together. These are "coauthors". Then there are coauthors of coauthors, and coauthors of those, etc., up to a very high degree. These collaborations form the innovation network. Visualized, the data looks like this: 4/n

Data: All ideas are tracked in intranet Idea Portal. We observe 1⃣ accept/reject decision for every idea, and 2⃣ whether the client rated the idea highly [clients don't often rate bad ideas, so absence of rating is bad signal]. These are our two innovation quality measures. 3/n

Setting: Employees in a firm can formulate and suggest innovative ideas (eg cost cutting measures, process improvements, product improvements). It's a bit like the review process in academia: ideas get evaluated, may need to be revised, get accepted or rejected. See graph: 2/n

📢New WP on networks in innovation Collaborating innovators form a network. Does the network position matter for outcomes? Is it helpful to have well-connected collaborators? Empirical answers based on over 28k corporate innovators. A summary 🧵👇 🔗 https://t.co/GcZAqYppcu

Feeling very sad today as we say goodbye to Lorna😭 Lorna has been an amazing Research Student Administrator & a fundamental part of our team for 17 yrs and she will be missed.👏👏 Please join us in saying thank you to Lorna & in wishing her every happiness in her retirement❤️

"The European migration crisis of 2015–2016 exposed weaknesses in the asylum system that have been only partly addressed," says Tim Hatton @UoE_Economics in his article: European asylum policy before and after the migration crisis. https://t.co/7E9WYFJiyJ

Thinking about doing a placement year? Hear it straight from someone who's been there! 👏 Check out our spotlight video by alumni Francis Nwofor. 👀 Watch now https://t.co/FuVn1I5bR5

🎓Huge congratulations to Dr Hamid Nejadghorban on completing their PhD & officially becoming a Doctor of Philosophy in Economics! Your dedication, perseverance, & passion for research have truly paid off. We're incredibly proud to celebrate this milestone with you 👏 #PhDlife

New CEPR Discussion Paper - DP20052 A Man’s World? Consumption-Based Investment in the Mutual Fund Industry Hans Peter Grüner @HansGruener @EconUniMannheim, Alexandra Niessen-Ruenzi @EconUniMannheim, Christoph Siemroth @UoE_Economics https://t.co/GsDzbKipp2 #CEPR_BCF #EconTwitter

Brilliant news. Congratulations Eleni 👏👏👏

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