Discussion Papers

About the Discussion Papers

The researchers at DIW Berlin usually publish their research results in scientific journals. However, this process can take many months, depending on the circumstances. To help bridge this gap, DIW Berlin began publishing Discussion Papers in 1989. The Discussion Papers offer a preview of the latest, not-yet-published research results, and allow current research to make its way into current debate more quickly.

Notes for authors

For publication in the series of DIW discussion papers the following may be submitted: Papers by DIW employees, DIW research professors and directors, DIW research affiliates and guest scientists who have spent at least one week at DIW Berlin and thank DIW Berlin in a footnote.    
Papers submitted will be sent in electronic form to the head of the relevant department at DIW Berlin. It is checked by an internal referee procedure whether or not the paper is likely to be published in a refereed journal. A decision on publication will then be made on the basis of a referee report. Should a paper have already been accepted for a publication by a refereed SSCI magazine or have received an invitation to a re-submission in a first-class journal, it will appear immediately without a referee procedure.

1930 results, from 1
Diskussionspapiere 1928 / 2021

Forward to the Past: Short-Term Effects of the Rent Freeze in Berlin

In 2020, Berlin enacted a rigorous rent-control policy: the “Mietendeckel” (rent freeze), aiming to stop rapidly growing rental prices. We evaluate this newly enacted but old-fashionably designed policy by analyzing its immediate supply-side effects. Using a rich pool of rent advertisements reporting asking rents and comprehensive dwelling characteristics, we perform hedonic-style Difference-in-Difference ...

2021| Anja M. Hahn, Konstantin A. Kholodilin, Sofie R. Waltl
Diskussionspapiere 1926 / 2021

The Leniency Rule Revisited: Experiments on Cartel Formation with Open Communication

The experimental literature on antitrust enforcement provides robust evidence that communication plays an important role for the formation and stability of cartels. We extend these studies through a design that distinguishes between innocuous communication and communication about a cartel, sanctioning only the latter. To this aim, we introduce a participant in the role of the competition authority, ...

2021| Maximilian Andres, Lisa Bruttel, Jana Friedrichsen
Diskussionspapiere 1925 / 2021

Coase and Cap-and-Trade: Evidence on the Independence Property from the European Carbon Market

This paper tests the independence property under the Coase Theorem in a large multinational cap-and-trade scheme for greenhouse gas emissions, the EU Emissions Trading System (EU ETS). I analyze whether emissions of power producers regulated under the EU ETS are independent from allowance allocations, leveraging a change in allocation policy for a difference-in-differences strategy. The evidence suggests ...

2021| Aleksandar Zaklan
Diskussionspapiere 1924 / 2020

Emergency Aid for Self-Employed in the COVID-19 Pandemic: A Flash in the Pan?

The self-employed are among those facing the highest probability of strong income losses during the COVID-19 pandemic. Governments in many countries introduced support programs to support the self-employed, including the German federal government, which approved a €50bn emergency aid program at the end of March 2020 offering one-off lump-sum payments of up to €15,000 to those facing substantial revenue ...

2020| Joern Block, Alexander S. Kritikos, Maximilian Priem, Caroline Stiel
Diskussionspapiere 1923 / 2020

EU Sustainable Finance Taxonomy – What Is Its Role on the Road towards Climate Neutrality?

The EU Taxonomy is the first standardised and comprehensive classification system for sustainable economic activities. It covers activities responsible for up to 80 percent of EU greenhouse gas emissions and may play an important role in channelling investments into low-carbon technologies by helping investors to make informed decisions. However, especially in transition sectors much depends on the ...

2020| Franziska Schütze, Jan Stede
Diskussionspapiere 1922 / 2020

Gender Differences in Face-to-Face Deceptive Behavior

We study the role of face-to-face interaction for gender differences in deceptive behavior and perceived honesty. In the first part, we compare women to men’s deceptive behavior using data from an incentivized income-reporting experiment with three treatments. Reporting is fully computerized in a baseline treatment but occurs face-to-face in the second and third treatment. Lies can be detected in the ...

2020| Tim Lohse, Salmai Qari
Diskussionspapiere 1921 / 2020

A Green COVID-19 Recovery of the EU Basic Materials Sector: Identifying Potentials, Barriers and Policy Solutions

This paper explores which climate-friendly projects could be part of the COVID-19 recovery while jump-starting the transition of the European basic materials industry. Findings from a literature review on technology options in advanced development stages for climate-friendly production and enhanced sorting and recycling of steel, cement, aluminium and plastics are combined with insights from interviews ...

2020| Olga Chiappinelli, Timo Gerres, Karsten Neuhoff, Frederik Lettow, Heleen de Coninck, Balázs Felsmann, Eugénie Joltreau, Gauri Khandekar, Pedro Linares, Jörn Richstein, Aleksander Śniegocki, Jan Stede, Tomas Wyns, Cornelis Zandt, Lars Zetterberg
Diskussionspapiere 1920 / 2020

Subgroup Analysis of Investment Constraints: Evidence from Ugandan Microenterprises

This study examines the effect of a soft commitment device in the form of a savings goal calendar on savings for small business owners in Kampala, Uganda. We run a randomized controlled trial (RCT) under which the treatment group receives a calendar designed to set savings goals and to make a plan to reach this goal. The control group is given a plain calendar. We find no average effect on savings, ...

2020| Helke Seitz
Diskussionspapiere 1919 / 2020

Savings Goal Calendars as Soft Commitment Devices: Evidence from Small Business Owners in Uganda

This study examines the effect of a soft commitment device in the form of a savings goal calendar on savings for small business owners in Kampala, Uganda. We run a randomized controlled trial (RCT) under which the treatment group receives a calendar designed to set savings goals and to make a plan to reach this goal. The control group is given a plain calendar. We find no average effect on savings, ...

2020| Antonia Grohmann, Tabea Lakemann, Helke Seitz
Diskussionspapiere 1918 / 2020

Common Ownership in the US Pharmaceutical Industry: A Network Analysis

We investigate patterns in common ownership networks between firms that are active in the US pharmaceutical industry for the period 2004-2014. Our main findings are that “brand firms” — i.e. firms that have R&D capabilities and launch new drugs — exhibit relatively dense common ownership networks with each other that further increase significantly in density over time, whereas the network of “generic ...

2020| Albert Banal-Estanol, Melissa Newham, Jo Seldeslachts
Diskussionspapiere 1917 / 2020

Corruption and Cheating: Evidence from Rural Thailand

This study tests the prediction that perceived corruption reduces ethical behavior. Integrating a standard “cheating” experiment into a broad household survey in rural Thailand, we find clear support for this prediction: respondents who perceive corruption in state affairs are more likely to cheat and, thus, to fortify the negative consequences of corruption. Interestingly, there is a small group of ...

2020| Olaf Hübler, Melanie Koch, Lukas Menkhoff, Ulrich Schmidt
Diskussionspapiere 1916 / 2020

Pipes, Taps and Vendors: An Integrated Water Management Approach

This paper applies a microeconomic-based stylized model to identify the optimal modal split of water supply infrastructure in regions of the Global South against the background of the Sustainable Development Goal (SDG) No. 6. We assume a linear city, with some plausible assumptions on income and willingness-to-pay, and then calculate the optimal tap density, leading in turn to an optimal modal split ...

2020| Georg Meran, Markus Siehlow, Christian von Hirschhausen
Diskussionspapiere 1915 / 2020

Foreign Exchange Intervention: A New Database

We construct a novel database of monthly foreign exchange interventions for 49 countries over up to 22 years. We build on a text classification approach that extracts information about interventions from news articles and calibrate our procedure to data about actual interventions. Our new dataset allows us to document stylized facts about the use of foreign exchange interventions for countries that ...

2020| Marcel Fratzscher, Tobias Heidland, Lukas Menkhoff, Lucio Sarno, Maik Schmeling
Diskussionspapiere 1914 / 2020

The Relationship between Financial Literacy and Financial Inclusion

About two billion people in the world do not own a financial account and there are many more who use financial services only occasionally. In the past, initiatives which address these problems of financial exclusion focused on the supply side of financial markets, in particular by increasing the branch network of banks and by offering cheap bank products. While this had the desired effect, recent ...

2020| Antonia Grohmann, Lukas Menkhoff
Diskussionspapiere 1913 / 2020

An Alternative Bootstrap for Proxy Vector Autoregressions

We propose a new bootstrap for inference for impulse responses in structural vector autoregressive models identified with an external proxy variable. Simulations show that the new bootstrap provides confidence intervals for impulse responses which often have more precise coverage than and similar length as the competing moving-block bootstrap intervals. An empirical example shows how the new bootstrap ...

2020| Martin Bruns, Helmut Lütkepohl
Diskussionspapiere 1912 / 2020

Financial Literacy and Intertemporal Arbitrage

We study the role of financial literacy for inter-temporal decision-making using an adapted version of the Convex Time Budget Protocol (Andreoni and Sprenger 2012). While we find no evidence of dynamically inconsistent preferences in the aggregate, we document substantial heterogeneity in choice-patterns and estimated parameters at the individual-level: We find that subjects with higher levels of financial ...

2020| Luis Oberrauch, Tim Kaiser
Diskussionspapiere 1911 / 2020

Machine Predictions and Human Decisions with Variation in Payoffs and Skills

Human decision-making differs due to variation in both incentives and available information. This generates substantial challenges for the evaluation of whether and how machine learning predictions can improve decision outcomes. We propose a framework that incorporates machine learning on large-scale administrative data into a choice model featuring heterogeneity in decision maker payoff functions ...

2020| Michael Allan Ribers, Hannes Ullrich
Diskussionspapiere 1910 / 2020

Transition Risks and Opportunities in Residential Mortgages

A range of studies has analysed how climate-related risks can impact financial markets, focusing on equity and corporate bond holdings. This article takes a closer look at transition risks and opportunities in residential mortgages. Mortgage loans are important from a financial perspective due to their large share in banks’ assets and their long credit lifetime, and from a climate perspective due to ...

2020| Franziska Schütze
Diskussionspapiere 1909 / 2020

Kurzarbeit and Natural Disasters: How Effective Are Short-Time Working Allowances in Avoiding Unemployment?

There is substantial evidence on the effectiveness of short-time work on reducing unemployment. However, no study looks at its role during natural disasters. This article exploits the exogenous nature of the 2013 European floods to assess if the impact depends on the quality of the short-time work mechanism across affected counties. We use regression discontinuity designs to show that unemployment ...

2020| Julio G. Fournier Gabela, Luis Sarmiento
Diskussionspapiere 1908 / 2020

Firm Financing and the Relative Demand for Labor and Capital

During both the 2008 and the COVID crises, aggregate employment in Europe and the US fell despite continuing growth in the aggregate capital stock. Using more than one million firm-year observations of small and medium European firms between 2003 and 2018, this paper introduces new stylized facts on how firms’ relative demand for labor and capital evolved as their capital structure adjusted to the ...

2020| Khalid ElFayoumi
1930 results, from 1