New IZA DPs -- Markets
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IZA Publications
Jan 26, 2026, 10:18:14 AMJan 26
to it...@umich.edu
Dear Italo Gutierrez,
These new IZA Discussion Papers are now available online.
DP 18184 - Ali/De Giorgi/Rahman/Verhoogen:
What Do Market-Access Subsidies Do? Experimental Evidence from Tunisia
DP 18295 - Cruz/Nobre/Pereira dos Santos:
The Economic Footprint of Short-Term Rentals on Local Businesses: Evidence from Portugal
DP 18328 - Brown/Tommasi:
Quality Upgrading in the Street Food Market: Is Better Equipment and Training Sufficient?
DP 18335 - Macchiavello/Miquel-Florensa/de Roux/Verhoogen/Bernasconi/Farrell:
Quality Upgrading in Global Supply Chains: Evidence from Colombian Coffee
DP 18353 - Foong/Machin/Sandi:
Crime and Prices: Evidence from Thefts of Expensive Precious Metal
DP 18354 - Henrekson/Persson:
Why Is Competition in the European Football Market Failing, and What Should Be Done About It?
Please find the abstracts and download links below.
IZA DP No. 18184
Nadia Ali, Giacomo De Giorgi, Aminur Rahman, Eric Verhoogen:
What Do Market-Access Subsidies Do? Experimental Evidence from Tunisia
Abstract:
Many countries seek to promote exports by subsidizing market access, but evidence on such efforts has been mixed. We present the first randomized evaluation of a government financial-support program explicitly targeting exports, the Tasdir+ program in Tunisia. The program offered matching grants for fixed market-access costs but not variable costs. Tracking outcomes in administrative data, we find positive effects on exports on average. We find limited impacts on the number of destinations or exported products, which were stated policy targets. The finding that the fixed-cost subsidies expanded exports on the intensive margin but not the extensive margins of destinations or products stands in contrast to the predictions of several workhorse trade models.
https://docs.iza.org/dp18184.pdf
IZA DP No. 18295
Ronize Cruz, Francisco Nobre, João Pereira dos Santos:
The Economic Footprint of Short-Term Rentals on Local Businesses: Evidence from Portugal
Abstract:
We analyze how the proliferation of short-term rentals (STRs) affects firm survival, performance, and entry in two European cities with high STR density. Using administrative firm-level accounting data, a shift-share instrument, and an event-study design, we find that STR growth increases exit rates among underperforming firms, while surviving firms experience relative gains in sales and profits, with minimal effects on employment or investment. Operational costs, particularly rents and liabilities, also rise. STR expansion stimulates entrepreneurship, though new entrants face higher costs and lower initial profitability. These findings underscore the nuanced impacts of tourism-driven demand shocks on urban economic ecosystems.
https://docs.iza.org/dp18295.pdf
IZA DP No. 18328
Caitlin Brown, Denni Tommasi:
Quality Upgrading in the Street Food Market: Is Better Equipment and Training Sufficient?
Abstract:
We study quality upgrading in informal markets through two experiments with street-food vendors and consumers in India. First, we define quality in terms of food safety and develop a context-specific measurement framework. Second, we show that consumers are willing to pay substantial premiums for cleanliness. Third, we implement a vendor-level intervention that lowers upgrading costs and enhances the ability to signal quality through sanitation-related equipment. The intervention improves food-safety practices and profits, but effects are modest and fade over time. Fixed pricing norms and local environmental constraints appear central, consistent with a moral hazard model where cleanliness is not profitable.
https://docs.iza.org/dp18328.pdf
IZA DP No. 18335
Rocco Macchiavello, Josepa Miquel-Florensa, Nicolás de Roux, Eric Verhoogen, Mario Bernasconi, Patrick Farrell:
Quality Upgrading in Global Supply Chains: Evidence from Colombian Coffee
Abstract:
Do the returns to quality upgrading pass through supply chains to primary producers? We explore this question in the context of Colombia’s coffee sector, in which market outcomes depend on interactions between farmers, exporters (which operate mills), and international buyers, and contracts are for the most part not legally enforceable. We formalize the hypothesis that quality upgrading is subject to a key hold-up problem: producing high-quality beans requires long-term investments by farmers, but there is no guarantee that an exporter will pay a quality premium when the beans arrive at its mills. An international buyer with sufficient demand for high-quality coffee can solve this problem by imposing a vertical restraint on the exporter, requiring the exporter to pay a quality premium to farmers. Combining internal records from two exporters, comprehensive administrative data, and the staggered rollout of a buyer-driven quality-upgrading program, we find empirical support for the key theoretical predictions. The results are consistent with the hypotheses that quality upgrading can provide a path to higher incomes for farmers, but also that it is unlikely to be viable under standard market conditions in the sector.
https://docs.iza.org/dp18335.pdf
IZA DP No. 18353
Gerald Foong, Stephen Machin, Matteo Sandi:
Crime and Prices: Evidence from Thefts of Expensive Precious Metal
Abstract:
We study whether economic incentives matter for crime in a novel way, through study of expensive precious metal thefts by thieves stealing catalytic converters. We combine sharp, plausibly exogenous variation in the prices of precious metals embedded in converters with newly assembled U.S. data and multiple research designs. We show that phenomenally fast increases in precious metal prices generated a sizeable and rapid rise in auto-part thefts, while subsequent price declines and policy responses quickly reversed this pattern. The resulting boom-and-bust dynamics provide clean evidence that both demand- and supply-side economic forces shape property crime and inform targeted deterrence policies.
https://docs.iza.org/dp18353.pdf
IZA DP No. 18354
Magnus Henrekson, Lars Persson:
Why Is Competition in the European Football Market Failing, and What Should Be Done About It?
Abstract:
The European football (soccer) market increasingly funnels rents to superstar players and intermediaries while weakening competitive balance. We trace this dynamic to two forces: (a) technological innovation that globalized broadcasting and magnified superstar returns, and (b) legal rulings boosting player mobility and causing bidding wars. The 2024 Diarra ruling by the Court of Justice of the European Union further loosens transfer constraints and will likely intensify talent concentration at “superclubs”. The result is soaring salaries and transfer fees, persistent financial fragility among non-elite clubs, and growing predictability of match outcomes. We evaluate reform options that preserve Europe’s open-league tradition yet borrow from North American competitive-balance tools: greater revenue sharing, hard/soft salary caps, and draft-like mechanisms. These should be complemented by a “cartel tax” to fund youth sport, and club-governance codes plus credible financial-sust ainability rules.
https://docs.iza.org/dp18354.pdf
Please click here to change your subscription status.
If you have trouble downloading the papers, or for any other questions regarding the IZA Discussion Paper Series, contact public...@iza.org.
These new IZA Discussion Papers are now available online.
DP 18184 - Ali/De Giorgi/Rahman/Verhoogen:
What Do Market-Access Subsidies Do? Experimental Evidence from Tunisia
DP 18295 - Cruz/Nobre/Pereira dos Santos:
The Economic Footprint of Short-Term Rentals on Local Businesses: Evidence from Portugal
DP 18328 - Brown/Tommasi:
Quality Upgrading in the Street Food Market: Is Better Equipment and Training Sufficient?
DP 18335 - Macchiavello/Miquel-Florensa/de Roux/Verhoogen/Bernasconi/Farrell:
Quality Upgrading in Global Supply Chains: Evidence from Colombian Coffee
DP 18353 - Foong/Machin/Sandi:
Crime and Prices: Evidence from Thefts of Expensive Precious Metal
DP 18354 - Henrekson/Persson:
Why Is Competition in the European Football Market Failing, and What Should Be Done About It?
Please find the abstracts and download links below.
IZA DP No. 18184
Nadia Ali, Giacomo De Giorgi, Aminur Rahman, Eric Verhoogen:
What Do Market-Access Subsidies Do? Experimental Evidence from Tunisia
Abstract:
Many countries seek to promote exports by subsidizing market access, but evidence on such efforts has been mixed. We present the first randomized evaluation of a government financial-support program explicitly targeting exports, the Tasdir+ program in Tunisia. The program offered matching grants for fixed market-access costs but not variable costs. Tracking outcomes in administrative data, we find positive effects on exports on average. We find limited impacts on the number of destinations or exported products, which were stated policy targets. The finding that the fixed-cost subsidies expanded exports on the intensive margin but not the extensive margins of destinations or products stands in contrast to the predictions of several workhorse trade models.
https://docs.iza.org/dp18184.pdf
IZA DP No. 18295
Ronize Cruz, Francisco Nobre, João Pereira dos Santos:
The Economic Footprint of Short-Term Rentals on Local Businesses: Evidence from Portugal
Abstract:
We analyze how the proliferation of short-term rentals (STRs) affects firm survival, performance, and entry in two European cities with high STR density. Using administrative firm-level accounting data, a shift-share instrument, and an event-study design, we find that STR growth increases exit rates among underperforming firms, while surviving firms experience relative gains in sales and profits, with minimal effects on employment or investment. Operational costs, particularly rents and liabilities, also rise. STR expansion stimulates entrepreneurship, though new entrants face higher costs and lower initial profitability. These findings underscore the nuanced impacts of tourism-driven demand shocks on urban economic ecosystems.
https://docs.iza.org/dp18295.pdf
IZA DP No. 18328
Caitlin Brown, Denni Tommasi:
Quality Upgrading in the Street Food Market: Is Better Equipment and Training Sufficient?
Abstract:
We study quality upgrading in informal markets through two experiments with street-food vendors and consumers in India. First, we define quality in terms of food safety and develop a context-specific measurement framework. Second, we show that consumers are willing to pay substantial premiums for cleanliness. Third, we implement a vendor-level intervention that lowers upgrading costs and enhances the ability to signal quality through sanitation-related equipment. The intervention improves food-safety practices and profits, but effects are modest and fade over time. Fixed pricing norms and local environmental constraints appear central, consistent with a moral hazard model where cleanliness is not profitable.
https://docs.iza.org/dp18328.pdf
IZA DP No. 18335
Rocco Macchiavello, Josepa Miquel-Florensa, Nicolás de Roux, Eric Verhoogen, Mario Bernasconi, Patrick Farrell:
Quality Upgrading in Global Supply Chains: Evidence from Colombian Coffee
Abstract:
Do the returns to quality upgrading pass through supply chains to primary producers? We explore this question in the context of Colombia’s coffee sector, in which market outcomes depend on interactions between farmers, exporters (which operate mills), and international buyers, and contracts are for the most part not legally enforceable. We formalize the hypothesis that quality upgrading is subject to a key hold-up problem: producing high-quality beans requires long-term investments by farmers, but there is no guarantee that an exporter will pay a quality premium when the beans arrive at its mills. An international buyer with sufficient demand for high-quality coffee can solve this problem by imposing a vertical restraint on the exporter, requiring the exporter to pay a quality premium to farmers. Combining internal records from two exporters, comprehensive administrative data, and the staggered rollout of a buyer-driven quality-upgrading program, we find empirical support for the key theoretical predictions. The results are consistent with the hypotheses that quality upgrading can provide a path to higher incomes for farmers, but also that it is unlikely to be viable under standard market conditions in the sector.
https://docs.iza.org/dp18335.pdf
IZA DP No. 18353
Gerald Foong, Stephen Machin, Matteo Sandi:
Crime and Prices: Evidence from Thefts of Expensive Precious Metal
Abstract:
We study whether economic incentives matter for crime in a novel way, through study of expensive precious metal thefts by thieves stealing catalytic converters. We combine sharp, plausibly exogenous variation in the prices of precious metals embedded in converters with newly assembled U.S. data and multiple research designs. We show that phenomenally fast increases in precious metal prices generated a sizeable and rapid rise in auto-part thefts, while subsequent price declines and policy responses quickly reversed this pattern. The resulting boom-and-bust dynamics provide clean evidence that both demand- and supply-side economic forces shape property crime and inform targeted deterrence policies.
https://docs.iza.org/dp18353.pdf
IZA DP No. 18354
Magnus Henrekson, Lars Persson:
Why Is Competition in the European Football Market Failing, and What Should Be Done About It?
Abstract:
The European football (soccer) market increasingly funnels rents to superstar players and intermediaries while weakening competitive balance. We trace this dynamic to two forces: (a) technological innovation that globalized broadcasting and magnified superstar returns, and (b) legal rulings boosting player mobility and causing bidding wars. The 2024 Diarra ruling by the Court of Justice of the European Union further loosens transfer constraints and will likely intensify talent concentration at “superclubs”. The result is soaring salaries and transfer fees, persistent financial fragility among non-elite clubs, and growing predictability of match outcomes. We evaluate reform options that preserve Europe’s open-league tradition yet borrow from North American competitive-balance tools: greater revenue sharing, hard/soft salary caps, and draft-like mechanisms. These should be complemented by a “cartel tax” to fund youth sport, and club-governance codes plus credible financial-sust ainability rules.
https://docs.iza.org/dp18354.pdf
Please click here to change your subscription status.
If you have trouble downloading the papers, or for any other questions regarding the IZA Discussion Paper Series, contact public...@iza.org.
IZA Publications
Jan 26, 2026, 10:20:01 AMJan 26
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