 
                                                
    
    
    
    
            On the 19th of September, Tuomas Markkula
(@tuomasmarkkula.bsky.social), will defend his doctoral dissertation โIndustrial organization studies on mixed health care markets and waiting timesโ.
To find out more, visit our website: www.helsinkigse.fi/articles/ind...
               
            
            
                17.09.2025 12:16 โ ๐ 3    ๐ 1    ๐ฌ 0    ๐ 0                      
            
         
            
        
            
        
            
            
            
            
            
    
    
    
    
            Find the paper here: tuomasmarkkula.github.io/files/markku...
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 0    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            Third, low-income consumers, more tolerant of waiting, might benefit less from capacity increases. Lowering public practice prices might benefit them more. However, an increase in capacity might increase visits the most for low-income consumers. 12/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            Second, curbing private producers' market power might be difficult with congested public production if private producers cater to consumers who dislike waiting, as only a few private consumers might be influenced by small changes in public waiting times. 11/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            The policy take-away is three-fold. First, reducing waiting times by just increasing production is difficult, as demand response will dampen the effect of capacity increase. Imposing demand restrictions might allow for larger decreases in waiting times. 10/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
                                                 
                                                
    
    
    
    
            Visits to dentists increase and at the extensive margin visits by low-income consumers increase the most, while the share switching from private practices to public practices increases in income. 9/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
                                                 
                                                
    
    
    
    
            Consumer surplus increases for everyone but high-income consumers experience the highest increase in consumer surplus because all consumers are equally likely to visit a public practice, but high-income consumers dislike waiting time most. 8/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
                                                 
                                                
    
    
    
    
            I find that increasing production capacity reduces waiting times by 5% (1.5 days) without affecting private practice prices. Public practicesโ market share rises by 13%, but mainly due to consumers who previously did not visit a dentist, explaining the lack of price effect. 7/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            In my counterfactual, I increase the public practice capacity by increasing the number of full-time-equivalent dentists at public practices by 20%. The counterfactual corresponds to an increase in evening and weekend work at public practices. 6/N
               
            
            
                12.12.2024 12:46 โ ๐ 0    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            Public producers are nonstrategic but waiting times arise through a congestion mechanism, as demand depends on waiting times and waiting times depend on demand. The exogenous number of dentists at a public practice determines production capacity. 5/N
               
            
            
                12.12.2024 12:46 โ ๐ 0    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            In my model, consumers choose between waiting for public sector care, paying more for private care, or not visiting a dentist. I can link visits to consumersโ characteristics, and consumersโ choices depend on their income and age. Private practices set prices. 4/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            I study these issues in the Finnish dental care industry, an ideal setting due to its reliance on both public and private producers, absence of insurance, and individual-level visit data from both sectors. 3/N
               
            
            
                12.12.2024 12:46 โ ๐ 0    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            A common problem in healthcare systems with public and private production is long public sector waiting times, which raise equity issues as low-income consumers are left waiting, and possibly allow private producers to increase prices. 2/N
               
            
            
                12.12.2024 12:46 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
                                                 
                                                
    
    
    
    
            #EconJMP alert!
Can increasing public healthcare production reduce waiting times, address equity concerns, and curb private sector market power in a setting with congested public services and costly private alternatives? I find that it only partially addresses these issues. #EconSky #EconJobMarket
               
            
            
                12.12.2024 12:46 โ ๐ 13    ๐ 2    ๐ฌ 1    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
            
                        
                Translating Stata to R
                Learning R coming from Stata
            
        
    
    
            Just a reminder that @gmcd.bsky.social and @kylefbutts.bsky.social have made an incredible public good describing how to use data.table and fixest to encourage moving from Stata to R!
stata2r.github.io
               
            
            
                04.12.2024 00:14 โ ๐ 274    ๐ 71    ๐ฌ 14    ๐ 6                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            I think I would have preferred the 1. one, as hearing other peoples ideas would be valuable and might also lead to collaboration. Also coming up with RQs is difficult at first.
               
            
            
                17.11.2024 06:45 โ ๐ 0    ๐ 0    ๐ฌ 0    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
            
                        
                EJM - Econ Job Market
                
            
        
    
    
            We are hiring! You will work on a series of exciting papers with me, @emilynix100.bsky.social, Kristiina H, Ning Zhang & Martti Kaila while developing your own research agenda. Please reach out with any questions!
 
Job ad: econjobmarket.org/positions/11218
#EconSky #EconJM
               
            
            
                15.11.2024 23:45 โ ๐ 24    ๐ 22    ๐ฌ 0    ๐ 0                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            thanks!
               
            
            
                13.11.2024 05:27 โ ๐ 0    ๐ 0    ๐ฌ 0    ๐ 0                      
            
         
            
        
            
            
            
            
                                                 
                                                
    
    
    
    
            #EconSky newly updated paper!  [Link at end of thread] The premise of this one is simple: what if IO tried to take inequality more seriously?
Let's thread the needle by having different price coefficients reflect "shadow value of a dollar" to rich & poor but stopping short of true income effects.
               
            
            
                12.11.2024 01:17 โ ๐ 32    ๐ 11    ๐ฌ 1    ๐ 1                      
            
         
            
        
            
            
            
            
            
    
    
    
    
            Hi! โ
               
            
            
                12.11.2024 05:48 โ ๐ 1    ๐ 0    ๐ฌ 1    ๐ 0                      
            
         
    
         
        
            
        
                            
                    
                    
                                            PhD Candidate University of Helsinki & Helsinki Graduate School of Economics. Interested in IO and health.
                                     
                            
                    
                    
                                            An alliance of three Finnish universities bringing together the best in economics education and research โ Aalto University, Hanken School of Economics, and University of Helsinki.
                                     
                            
                    
                    
                                    
                            
                    
                    
                                            PostDoc WZB-Berlin and Berlin School of Economics, researching gender norms and inequality
                                     
                            
                    
                    
                                            www.verotutkimus.fi
www.taxresearch.fi
FIT = Tampere University, VATT Institute for Economic Research & University of Helsinki. Funded by the Research Council of Finland in 2022-29.
Verotutkimuksen huippuyksikkรถ. ๐
                                     
                            
                    
                    
                                    
                            
                    
                    
                                            Energy and environmental economics at Aalto University & Helsinki Graduate School of Economics.
https://iivovehvilainen.com
                                     
                            
                    
                    
                                            Labor economist, Aalto University- Helsinki GSE www.cipriandomnisoru.net   Here until this place gets taken over by a billionaire who changes the name to Z. 
                                     
                            
                    
                    
                                            Unjust society is unsustainable -> democracy is non-negotiable.
Sustainability transition & modeling circular economy @ Finnish Environmental Institute (Syke) as a profession; defence of Finland and democracy as a hobby.
                                     
                            
                    
                    
                                            PhD student in Economics at Tilburg University | previously IPA Uganda | development economics
                                     
                            
                    
                    
                                            Economics and and data-driven insights for equitable development. https://egc.yale.edu
                                     
                            
                    
                    
                                    
                            
                    
                    
                                            Researcher at @EtlaNews. Interested in empirical industrial organization. Personal website: https://markkaj.github.io/
                                     
                            
                    
                    
                                            Assistant Professor in Economics @TSE-fr.eu |  IO/Energy/Environmental  
https://sites.google.com/view/charlottedecanniere/home
                                     
                            
                    
                    
                                            PhD Student in Economics at AaltoUniversity and HelsinkiGSE. Stockholm born and raised, now living in Helsinki. ๐ธ๐ช๐ซ๐ฎ๐ฌ๐ง๐ฉ๐ช + flytande skandinaviska
https://sites.google.com/view/jerrymontonen
                                     
                            
                    
                    
                                            Postdoctoral Researcher, Aalto University and Helsinki GSE. Climate change, natural disasters, transportation, housing, quantitative spatial models. aang4.github.io.
                                     
                            
                    
                    
                                            Health Economist -- Baylor College of Medicine and Houston VA 
Formerly: University of Arizona, TGG Group, and Northwestern
chase-eck.github.io
                                     
                            
                    
                    
                                            Economist AP at Aalto University and Helsinki GSE studying urban mobility, public transit, congestion, segregation; he/him
https://www.prottoyamanakbar.com/
                                     
                            
                    
                    
                                            Senior Researcher at @labore.fi
Post-doctoral Researcher at @helsinki.fi
Interested in labor and public economics and knitting
https://smakal.github.io/
                                     
                            
                    
                    
                                            Associate professor at the Department of Geography, Complutense University of Madrid. MeRSA grant and Fellow (FeRSA) of Regional Studies Association @regstud.bsky.social Deputy Editor-in-Chief of Investigaciones Regionales-Journal of Regional Research