Inmates' informal code regulates their behavior and attitudes. We investigate whether prisons contribute to the spread of these norms to the general population using an exogenous shock of the Soviet amnesty of 1953, which released 1.2 million prisoners. We document the spread of prison norms in...

This paper evaluates the effect of the Russian invasion of Ukraine in February 2022 on refinery margins, i.e. the difference between wholesale prices for road fuels (gasoline and diesel) and oil prices in Europe and Germany in particular. Following the Russian invasion of Ukraine, wholesale road...

This study examines the impact of the Russia-Ukraine war on crude oil tail risk using the Conditional Autoregressive Value at Risk (CAViaR) framework. We analyzed 2364 daily observations of West Texas Intermediate (WTI) crude oil futures spanning 1 January 2015 to 11 December 2023, thereby...

The weaponization of agricultural trade has once again emerged as critical in the study of modern geopolitics due to Russia's full-scale invasion of Ukraine. Although Russia has used its wheat exports as a means of enhancing its geopolitical influence over countries in the Global South, evidence...

Russia's isolation from global financial markets and government programmes to support bank lending initially fuelled a wartime lending boom in Russia. With economic growth now stalled and borrowing costs rising, lending growth has slowed. This shift, in conjunction with increased public sector...

This paper evaluates the effect of the Russian invasion of Ukraine in February 2022 on refinery margins, i.e. the difference between wholesale prices for road fuels (gasoline and diesel) and oil prices in Europe and Germany in particular. Following the Russian invasion of Ukraine, wholesale road...

A credible EU enlargement policy remains necessary from a geopolitical perspective, but can only succeed through a more pragmatic and gradual integration approach. New members amplify the existing challenges to EU decision making, rule-of-law conditionality and political cohesion, particularly...

The Pax Americana, which guaranteed the security of Germany and Europe after the Second World War, is coming to an end. Europe can no longer rely on its alliance and partnership with the United States. Even before Donald Trump’s second presidency, Europe was seeking to reduce its dependency on...

The evolving geopolitical landscape has placed South Africa at a crossroads, torn between its historical ties to the West and its growing relationships with BRICS+ nations, particularly China and Russia. The country's recent political shift, marked by the African National Congress (ANC) losing...

Space capabilities are a core element of any modern defence arsenal. In Europe, however, military space capabilities are limited and dependence on the United States remains high. Europe must develop its capabilities in order to reduce dependencies and enhance its capacity to act on its own,...

The Pax Americana, which guaranteed the security of Germany and Europe after the Second World War, is coming to an end. Europe can no longer rely on its alliance and partnership with the United States. Even before Donald Trump's second presidency, Europe was seeking to reduce its dependency on...

The weaponization of agricultural trade has once again emerged as critical in the study of modern geopolitics due to Russia's full-scale invasion of Ukraine. Although Russia has used its wheat exports as a means of enhancing its geopolitical influence over countries in the Global South, evidence...

Wars disrupt labor markets, yet systematic evidence on how markets for labor services operate during conflicts is almost entirely absent. Ukraine is a rare exception: despite the full-scale Russian invasion, timely data on workers and vacancies, in both stocks and flows, remain available. We use...

The acquisition of Greenland has repeatedly been a topic of discussion within US government circles since the 19th century. That is because of the island’s strategic loca­tion and its resources. In the summer of 2019, US President Donald Trump made his first bid to purchase Greenland from the...

The evolving geopolitical landscape has placed South Africa at a crossroads, torn between its historical ties to the West and its growing relationships with BRICS+ nations, particularly China and Russia. The country's recent political shift, marked by the African National Congress (ANC) losing...

This paper aims to investigate the sensitivity of the gas market: Russian Natural Gas and Liquefied Gas, to other commodity categories. It sheds light on the Russian-Ukrainian crisis by using an Autoregressive Distributed Lag model on daily prices of Russian Natural Gas, Liquefied Natural Gas,...

Space capabilities are a core element of any modern defence arsenal. In Europe, how­ever, military space capabilities are limited and dependence on the United States remains high. Europe must develop its capabilities in order to reduce dependencies and enhance its capacity to act on its own,...

Since Russia launched its full-scale war of aggression against Ukraine in 2022, the European Union (EU) has pursued its enlargement policy as part of a geopolitical approach. According to the European Commission and candidate states, the EU could admit new members from 2028 onwards, while...

A series of scandals in Ukraine has shown that Russia’s war of aggression has not put an end to corruption in the country. Although Ukraine’s specialised institutions play an important role in combating corruption, the country’s governance model does not yet meet the requirements of the...

Since Russia launched its full-scale war of aggression against Ukraine in 2022, the European Union (EU) has pursued its enlargement policy as part of a geopolitical approach. According to the European Commission and candidate states, the EU could admit new members from 2028 onwards, while...

Rising geopolitical tensions and fluctuating financial market conditions have increased volatility and negatively impacted property returns across BRICS countries, yet this critical area remains underexplored despite its significant implications for policy reform and investor participation. To...

We examine recent developments and outcomes from Russia's policies on import substitution and technological sovereignty utilizing official documents, statistical data, and company surveys. While Russian officials proclaim ambitious technological sovereignty targets, the reality is less...

We examine how Western sanctions imposed in response to Russia's 2022 invasion of Ukraine shaped firm-level stock market performance in the EU and the US. To measure sanction exposure, we link firms to the specific products targeted by US and EU sanctions at the HS6 level, producing a detailed,...

• This report is built on an update of the Kiel Military Procurement Tracker, covering the UK, Poland and Germany up to January 2026. We show that orders have grown rapidly in frequency, size and number since the start of Russia's full-scale invasion of Ukraine. In 2025, German military...

This paper formalizes the geopolitical externality of climate policy and estimates its plausible magnitudes. Specifically, domestic reductions in fossil fuel demand depress global prices, thereby lowering export revenues for resource-rich autocracies - many of which allocate substantial...

Purpose This study examines whether CEO power influences the book-based and market-based performance of Russian companies when it is restricted by the presence of essential shareholders, namely, state and influential businessmen. Design/methodology/approach Managerial power is divided into...

For the past three years, Ukraine has not allowed Russia to win its illegal war of aggression. During long periods of the war, the parties have found themselves in a military and diplomatic stalemate. Now US President Donald Trump has sided with the aggressor. "Nothing about Ukraine without...

Russia's war of aggression, which has brought wide destruction and loss to Ukraine, has also transformed the Russian economy in significant ways. The Russian government's role in the economy has grown, with an ever-increasing amount of economic resources allocated to the war effort. The...

Three years of war, sanctions and Russia's isolation from the global community have changed its economy in many ways. Some changes such as the degraded business environment and increased government presence in the economy are likely to persist. War has also exacerbated Russia's already poor...

Three years of war, sanctions and Russia's isolation from the global community have changed its economy in many ways. Some changes such as the degraded business environment and increased government presence in the economy are likely to persist. War has also exacerbated Russia's already poor...

We study how Europe could replace US support for Ukraine both (i) financially, in terms of the fiscal effort required, and (ii) militarily, in terms of weapon production. Financial effort: The financial challenge of replacing US aid is limited. Currently, European governments are spending just...

With the Green Deal, the European Union (EU) has not only significantly increased the ambition of its climate policy in recent years, but it has also added an international dimension to European domestic climate policy. In fact, numerous recently adopted legal acts directly or indirectly affect...

Driven by both political camps in Seoul, relations between South Korea and the North Atlantic Treaty Organization (NATO) have deepened significantly since their initiation in 2005. While this intensified relationship was shaped to a large extent by geopolitical developments and increasing...

Apart from several infrastructure projects which ultimately failed, and a surprise visit by the icebreaker Xuelong off the Greenlandic capital, Nuuk, the People's Repub­lic of China has long maintained a cautious and reserved presence in the Arctic in the shadow of Russia and its fleet of...