The infinitive here is 'to leave', and it is used as an 'adverb', meaning 'with the intention to leave', since it modifies a verb, it has to be an adverb.
Economic concern and stability
Explanation:
The economic problem, which is sometimes considered the basic or core economic problem, argues that the available resources of an economy are inadequate to satisfy all human needs and desires. Economics involves learning how money can be distributed under inadequate circumstances.
The avoidance of undue volatility of the macro economy ensures economic stability. The economy would be seen as economically stable with fairly constant production growth and low and stable inflation.
Last night my sister wanted to go to the movies. I wanted to go with her. What was stopping us? I had to finish my math homework first. The hardest problems ever. I asked my sister to wait for me? What do you think she did. She helped me figure out the answer. Made it to the show just in time.
In fact, Florida Virtual School, the nation’s largest virtual high school, boasts higher scores in its advanced-placement courses than many traditional public schools.
(Hope this helps, friend) c: