Some households contribute only a small amount of equity when buying property financed by a loan. If they then default on the loan, lenders may incur losses. Should the problem affect a large number of lenders, this could potentially jeopardise financial stability. Minimum requirements for the own funds households need to provide can limit losses that may arise. However, this would mean that some households can no longer obtain loans in the desired amount. A Bundesbank study shows that a large proportion of the households interested in buying which would be affected by this are then willing to buy a cheaper property or to save more in order to buy at a later date. The impact on homeownership is therefore likely to be smaller in the medium than in the short term.

Internal risk models play an important role in ensuring capital adequacy at banks. Banking supervisors keep a particularly close eye on them, as banks have some degrees of freedom when it comes to model design. A new study examines the incentives for banks to implement internal risk models, analyses their impact on risk management and explains possible consequences of a new regulatory proposal regarding application of such models.

The trade dispute between the United States and China in 2018 and 2019 increased trade policy uncertainty, leading to a marked appreciation of the US dollar (USD). The obvious explanation for this is the special role played by USD investments in the global financial system as a safe haven for investors in times of high uncertainty. The USD appreciation triggered in this way in 2018 and 2019 enabled Chinese exporters to lower their prices in US dollars. As a result, the impact of the additional import tariffs imposed at the time by the United States on Chinese products was significantly reduced.

The debate surrounding climate change mitigation measures has lately also extended to central bank instruments. One of the points under discussion is the preferential treatment of green bonds in central bank monetary policy operations. This would improve the financing conditions of firms with low emissions and thus create an incentive for green investment. Using a novel model, we analyse the climate policy and macroeconomic implications of a green-tilted collateral policy and are able to identify only minor effects on green investment.

The Eurosystem’s negative interest rate policy (NIRP) incentivised banks to also charge their customers negative deposit rates. My analysis shows that German banks did actually charge negative interest rates on corporate deposits at times. However, the banks that did so were primarily those which relied heavily on household deposits as a source of funding. These banks were very reluctant to apply negative interest rates to household deposits as well, and thus probably faced particularly high margin pressure. It was primarily these banks that also charged higher fees in order to ease this pressure.