Javad Shamsi

Javad Shamsi

Job Market Candidate

Department of Economics

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Languages
English, Kurdish, Persian
Key Expertise
Labour Economics

About me

Javad is a PhD candidate in the Department of Economics and a Research Officer at the Institute for Fiscal Studies. He is on the job market in 2024/25. He specializes in applied microeconomics with a focus on labour, political economy, and urban economics. In his work, he employs various methods to collect and analyze data, including natural language processing, image processing, AI tools, big data analytics, and web scraping.

His job market paper focuses on how the digital economy is democratizing labour market opportunities amid global and technological changes. More broadly, his work examines how policy-relevant external factors influence workers and shape economic and political outcomes.

Contact Information

Email
m.shamsi@lse.ac.uk

Office Address
Department of Economics
London School of Economics and Political Science
Houghton Street, London WC2A 2AE

Contacts and Referees

Placement Officer
Matthias Doepke

Supervisors
Tim Besley
Xavier Jaravel 
Guy Michaels

References
Tim Besley
Department of Economics
London School of Economics and Political Sciences
Houghton St, London WC2A 2AE
t.besley@lse.ac.uk

Xavier Jaravel
Department of Economics
London School of Economics and Political Sciences
Houghton St, London WC2A 2AE
x.jaravel@lse.ac.uk

Guy Michaels
Department of Economics
London School of Economics and Political Sciences
Houghton St, London WC2A 2AE
g.michaels@lse.ac.uk

Download CV

Job Market Paper

A New Order: Digital Disruption and Democratization of Restaurant Entrepreneurship.

Digital marketplaces are on the rise, but it remains uncertain whether they democratize entrepreneurship or primarily benefit large firms. This paper examines this phenomenon by studying how the growth of food delivery platforms—specifically UberEats and Deliveroo— impacts restaurant entrepreneurship in the UK. By constructing a novel dataset capturing the staggered expansion of these platforms and employing a dynamic difference-in-differences framework, I find that they stimulate a 35% increase in restaurant numbers over four years. This growth is primarily driven by small and independent businesses, with migrants and ethnic minority entrepreneurs gaining disproportionately, facilitated by reduced entry costs and the diminished importance of physical location. This democratization in entrepreneurship leads to greater diversity in cuisine offerings, enriching consumer choices. I Link to paper.

Publications and Research

Working Papers

Understanding multi-layered sanctions: A firm-level analysis 
This paper examines which types of firms are hit by multi-layered sanctions, quantifies the extent of the economic impact on the affected firms, and identifies the channels through which these effects are propagated. To this end, I use a text-based approach from computational linguistics to gauge the exposure of publicly listed Iranian firms to sanctions, validating this measure through its anticipated fluctuation over time and across industries. The findings reveal three key insights. First, Iranian firms report significant challenges due to sanctions, exceeding COVID-19 concerns by up to 20%. Second, politically-connected and non-connected firms suffer equally from sanctions; for every $1 loss inflicted on connected firms, an externality of $5 is imposed on non-connected firms, considering their economic scale. This contradicts the idea that sanctions only inflict harm on political decision-makers. Third, sanctions are hurtful; firms with higher exposure to sanctions endure greater losses in stock market value in the wake of unanticipated sanction events. Sanctions also lead to reduced sales, investment and hiring. Furthermore, the study reveals that sanctions impact firms via several mechanisms, the primary one being the limitation of access to export destinations.

Immigration and Political Realignment 
This paper examines how immigration reshapes political landscapes, centring on the influx of immigrants from the EU's 2004 enlargement and its implications for the UK. I use a new variation in exposure to immigration based on migrant flows across various industries coupled with the employment structure in each region. Addressing potential concerns of endogeneity, I introduce a novel shift-share IV design, harnessing the industry-specific flow of migrants to regions outside the UK within the pre-2004 EU. The findings reveal a significant impact on support for the right-wing UK Independence Party and the Brexit Leave campaign, accompanied by a decline in Labour Party support. Moreover, the research indicates that voters' social attitudes toward immigration become more adverse in response to immigration. Political parties, particularly Conservatives, are also observed to increasingly engage with the topic of immigration in constituencies most affected by immigration, typically marked by negative rhetoric. The paper reconciles these findings by highlighting how immigration shocks entrench immigration cleavage, realigning political conflict from traditional economic lines to new cultural dimensions.

 

Works in Progress

From Streets to Ballots: The Impact of Climate Protests on Public Awareness and Electoral Outcomes, with Azhar Hussain and Ranjana Sinha

Labour Market Dynamics and Political Change in the Europe, with Tim Besley and Torsten Persson.