экономических

экономических

"Economic."

Here, 'экономический' (economic) describes the noun 'кризис' (crisis), specifying the nature of the crisis.

Экономический кризис затронул многие отрасли.

The economic crisis affected many sectors.

In this sentence, 'экономическим' is in its plural dative form and refers to the disciplines related to economics.

Этот университет предлагает курсы по экономическим дисциплинам.

This university offers courses in economic disciplines.

Here, 'экономических' is in its plural genitive form and modifies 'моделей' (models), indicating they are related to economics.

Разработка новых экономических моделей занимает много времени.

The development of new economic models takes a lot of time.