PCB's goal is to provide its private, corporate and wealth management clients with a comprehensive range of products from standard banking services to individual investment and financing advice, and to drive attractive returns for our shareholders. The product offering is supported by a global network, strong capital market and financing expertise and innovative digital services. In our German businesses, our focus in 2018 will be on integrating our PCC business and Postbank. We are thereby creating the largest private and commercial bank in our German home market with over 20 million customers. PCC International concluded in December 2017 a sale agreement for a large part of our retail banking business in Poland and closing that transaction will be a focus in 2018. Furthermore, we will continue to transform our businesses in our remaining international locations. In Wealth Management, our emphasis will be to further transform and grow our franchise. This includes the implementation of the announced integration of Sal. Oppenheim's private customer business into our German business and the further expansion in important growth markets such as Asia, Americas and EMEA. In addition, we will continue to invest in digital capabilities across all business areas.
Our revenues in 2017 benefited from material specific items, which we do not expect to repeat in the same magnitude in 2018. This effect should be largely offset by growth in commission and fee income, so that we expect reported revenues in 2018 to be essentially flat compared to 2017. Margins in the deposit business will continue to be negatively impacted by the low interest rate environment. However, we assume that we will be able to compensate for this with higher loan revenues, so that net interest income should also remain essentially flat compared to 2017.
We project assets under management to grow slightly in 2018, driven mainly by our growth strategy in key Wealth Management regions. We also assume that our risk-weighted assets will be slightly higher than at the end of 2017 due to our growth strategy in the loan businesses.
In 2018, provision for credit losses is expected to be significantly higher than in 2017, which benefited from specific factors including a material release in Postbank. We also anticipate an increase in line with our growth strategy in the loan businesses, and the introduction of IFRS 9 should increase the volatility of provision for credit losses compared with previous years.
We assume that noninterest expenses in 2018 will be slightly lower than in 2017, which included considerable restructuring expenses for the integration of Postbank. The adjusted cost base should remain essentially flat in 2018. Further savings from initiated restructuring measures are expected to be offset by higher investment costs, in particular for the integration of Postbank, but also for further investments in digitization, the ongoing transformation of PCC International and Wealth Management, as well as inflationary effects.
Uncertainties that could affect our earnings situation in 2018 include slower economic growth in our main operating countries, any further decline in global interest rates and higher-than-expected volatility in the equity and credit markets, which could have a negative impact on our clients' investment activities. The implementation of extended regulatory requirements such as MiFID II and PSD II as well as possible delays in the implementation of our strategic projects could have a negative impact on our revenue and cost base.