Publications

The KCG has various series of publications to provide research findings and policy implications to different interested groups, e.g., students, academics, policy makers and the public. The list of publications will be updated on a regular basis and is available as a PDF file here.

Digitalization Intensity and Extensive Margins of Exports in Manufacturing Firms from 27 EU Countries – Evidence from Kernel-Regularized Least Squares Regression

8th January 2025
KCG Secretary
Authors: Joachim Wagner (Economic Analysis Letters, 4(1): 22–29)

The use of digital technologies like artificial intelligence, robotics, or smart devices can be expected to go hand in hand with higher productivity and lower trade costs, and, therefore, to be positively related to export activities[...]

KCG Working Paper No. 35: Urbanized and Savvy – Which African Firms are Making the Most of Mobile Money?

19th September 2024
KCG Secretary
Publications
Publications
Authors: Charles Ackah, Aoife Hanley, Lars Hecker, and Michael Kodom

Our analysis of over 500 Ghanaian firms sheds light, for the first time, on how certain firms managed to extract value from mobile money. Our regressions point to the usefulness of this form of cashless payments in stabilizing sales during the COVID pandemic[...]

Cloud computing and extensive margins of exports: Evidence for manufacturing firms from 27 EU countries

8th May 2024
KCG Secretary
Authors: Joachim Wagner (Journal of Information Economics 2024 2(1): 102–111)

The use of cloud computing by firms can be expected to go hand in hand with higher productivity, more innovations, and lower costs, and, therefore, should be positively related to export activities. Empirical evidence on the link between cloud computing and exports, however, is missing[...]

KCG Working Paper No. 32: Estimation of empirical models for margins of exports with unknown non-linear functional forms: A Kernel-Regularized Least Squares (KRLS) approach

29th January 2024
KCG Secretary
Publications
Publications
Author: Joachim Wagner

Empirical models for intensive or extensive margins of trade that relate measures of exports to firm characteristics are usually estimated by variants of (generalized) linear models. Usually, the firm characteristics that explain these export margins enter the empirical model in linear form, some-times augmented by quadratic terms or higher order polynomials, or interaction terms, to take care or test for non-linear relationships.

KCG Working Paper No. 31: Does Immigration Affect Native Wages? A Meta-Analysis

22nd January 2024
KCG Secretary
Publications
Publications
Authors: Clément Nedoncelle, Léa Marchal, Amandine Aubry, and Jérôme Héricourt

The impact of immigration on native workers’ wages has been a topic of long-standing debate. This meta-analysis reviews 42 studies published between 1987 to 2019, offering a comprehensive as-sessment of reduced-form estimates of the wage effect of immigration[...]

KCG Working Paper No. 30: Technological Sophistication Made in China? – New Insights from Germany’s Evaluation of COVID-19 Antigen Rapid Tests

13th November 2023
KCG Secretary
Publications
Publications
Authors: Silas Dreier and Wan-Hsin Liu

By analyzing a unique dataset from Germany’s evaluation of COVID-19 antigen rapid tests, we show that Chinese firms can excel under today’s global competition and produce tests at quality levels higher than China’s income level would suggest[...]