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CEP discussion paper
Random placement but real bias

Many studies exploit the random placement of individuals into groups such as schools or regions to estimate the effects of group-level variables on these individuals. Assuming a simple data generating process, we show th...Read more...

Marco Schmandt, Constantin Tielkes and Felix Weinhardt

22 December 2025

CentrePiece article
How much is your time worth?

Wages indicate how much people want for their time at work, but how can we find out what value they place on time spent doing other things? Christian Krekel and George MacKerron analyse over two million responses to a sm...Read more...

Christian Krekel and George MacKerron

20 February 2024

CentrePiece article
Video killed the radio star? Evidence from YouTube and iTunes

Making video clips of a song unavailable on YouTube has no effect on its sales on iTunes; but album sales suffer when video clips of a song from it are made unavailable on YouTube. These findings of a study by Tobias Kre...Read more...

Tobias Kretschmer and Christian Peukert

3 October 2014

CEP discussion paper
Video killed the radio star? Online music videos and digital music sales

Sampling poses an interesting problem in markets with experience goods. Free samples reveal product quality and help consumers to make informed purchase decisions (promotional effect). However, sampling may also induce c...Read more...

Tobias Kretschmer and Christian Peukert

11 April 2014

CEP discussion paper
Why Do People Pay for Useless Advice?

We investigated experimentally whether people can be induced to believe in a non-existent expert, and subsequently pay for what can only be described as transparently useless advice about future chance events. Consistent...Read more...

Nattavudh Powdthavee and Yohanes E. Riyanto

28 June 2012

SERC/Urban and Spatial Programme Discussion Paper
Politics in Coalition Formation of Local Governments

We analyze empirically the coalition formation of local governments using a novel reduced form econometric procedure that allows for multi-partner mergers. Using Finnish municipal merger data where mergers were decided i...Read more...

Tuukka Saarimaa and Janne Tukiainen

2 March 2012

CEP discussion paper
Depression Econometrics: A FAVAR Model of Monetary Policy During the Great Depression

The prominent role of monetary policy in the U.S. interwar depression has been conventional wisdom since Friedman and Schwartz (1963). This paper presents evidence on both the surprise and the systematic components of mo...Read more...

Pooyan Amir Ahmadi and Albrecht Ritschl

January 2010

CEP discussion paper
Globalisation, ICT and the Nitty Gritty of Plant Level Datasets

The net entry contribution to aggregate productivity growth has increased dramatically in the UK over 1990s according to calculations based on data from the Annual Respondents Database (ARD). Some recent studies have tri...Read more...

Ralf Martin

September 2004