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Publications

On this page we provide information about publications from the Institute. Our scientists publish their research results both in the Institute's publication series and in external media.

New Publications
a row of gas pumps sitting next to each other
Other Articles

The German Fuel Market in Spring 2026: Regional and Temporal Price Responses to the Middle East Conflict, Regulation, and Gas Station Rebates

Michael Berlemann, Lea Bernhardt, Hennes Meyer (2026),
ifo Dresden berichtet 33(05), 18-27.
gray and red factory building under a calm blue sky
Refereed Articles

Estimating Capital Stocks Around the Globe: An Application of the Perpetual Inventory Method with Time- and Spatially Varying Depreciation Rates

Michael Berlemann, Florian Samuel Peters, Jan-Erik Wesselhöft (2026),
Review of Economics 77(2), 143-181.
shallow focus photograph of black and gray compass
HWWI Forecasts

German Economy 2026/27: Signs of Recovery - but Reform Needs Remain

Michael Berlemann, Jörg Hinze (2026),
HWWI Forecasts, No. 3/2026, Hamburg Institute of International Economics.
External Publications
a row of gas pumps sitting next to each other
Other Articles

The German Fuel Market in Spring 2026: Regional and Temporal Price Responses to the Middle East Conflict, Regulation, and Gas Station Rebates

Michael Berlemann, Lea Bernhardt, Hennes Meyer (2026),
ifo Dresden berichtet 33(05), 18-27.

This paper analyzes the effects of the Iran conflict (from February 2026), the 12 o’clock pricing rule, and the fuel price subsidy on the German retail fuel market. Using daily price data from approximately 15,000 stations, it examines price responses for E5, E10, and diesel by brand category and over…
gray and red factory building under a calm blue sky
Refereed Articles

Estimating Capital Stocks Around the Globe: An Application of the Perpetual Inventory Method with Time- and Spatially Varying Depreciation Rates

Michael Berlemann, Florian Samuel Peters, Jan-Erik Wesselhöft (2026),
Review of Economics 77(2), 143-181.

Reliable capital stock data are essential for empirical research in economics. However, existing datasets often suffer from limitations that hamper international comparability. In this paper, we introduce a new database of internationally comparable capital stock estimates. Building on the methodology developed by Berlemann and Wesselhöft (2014. “Estimating Aggregate Capital Stocks…
Strait of hormuz between iran and oman
Other Articles

Energy Commodity Prices in the Context of the 2026 Middle East Conflict

Lea Bernhardt, Laura Kollert (2026),
Wirtschaftsdienst 106(8).

This article examines the development of energy commodity prices since the beginning of the conflict in the Middle East in spring 2026, which led to substantial disruptions in international energy markets. In particular, crude oil and natural gas prices, as well as the HWWI Energy Price Index, increased markedly in…
All External Publications
Internal Publications
shallow focus photograph of black and gray compass
HWWI Forecasts

German Economy 2026/27: Signs of Recovery - but Reform Needs Remain

Michael Berlemann, Jörg Hinze (2026),
HWWI Forecasts, No. 3/2026, Hamburg Institute of International Economics.

According to the latest figures from the Federal Statistical Office, the German economy performed better in the first half of this year than geopolitical burdens and the negative mood in this country would have expected; the price- and seasonally adjusted gross domestic product increased by 0.75% in this period and…
cargo ship on dock during daytime
HWWI Studies

The Maritime Economy of the Weser-Ems Region

Michael Berlemann, Marina Eurich, Erik Haustein, Andreas Lagemann, Sebastian Leue, Morten Grinna Normann, Paula Schwamb, Dirck Süß, Daniela Wenzel (2026),
HWWI Studies, No. 8, Hamburg Institute of International Economics.

The Weser-Ems region is a region in northern Germany that has traditionally been strongly shaped by the maritime economy. It is home to a significant and extremely important part of Germany’s maritime economy. The maritime economy includes, in particular, shipping companies, ports, the shipbuilding industry, maritime services, and offshore wind…
shallow focus photograph of black and gray compass
HWWI Forecasts

The Iran conflict and lack of reform are slowing down the German economy

Michael Berlemann, Jörg Hinze (2026),
HWWI Forecasts, No. 2/2026, Hamburg Institute of International Economics.

After a good start to this year for the German economy, the outlook for growth and inflation has deteriorated significantly since the end of February due to the Iran war, in particular the closure of the Strait of Hormuz and the associated increase in energy prices. The closure of the…
All Internal Publications
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