Economics
Why hasn’t the United States given aid to Mexico to improve their economic and crime situations?
GirlfromUncle asked:
I just don’t get it. Everyone complains about immigration but the US does nothing to help improve living conditions in Mexico so that their citizens don’t have to come here to find safety and work. Most immigrants would happily stay at home with their families if they could make a decent [...]
How travel time and cost become substitutes or complement?
Callnoc asked:
If we have travel time and travel cost, under what conditions can they be considered as substitues? Under what conditions can they be considered as complements?
Could you please give example in transportation system?
Thanks.