Generally, higher price will reduce demand for alcohol/drugs even among individuals who are dependent (see for example "Babor et al: "Alcohol - no ordinary commodity").
I suppose you mean cannabis use versus other drugs like heroin and amphetamines. Are heroin and amphetamines really cheaper than cannabis in Your country?
http://www.ndphs.org/documents/2253/Babor_alc%20no%20ordinary%20comm%20second%20edition.pdf
much recent activity on web re differences between fruit of the marijuana plant, illegal
in most states , with high levels of THC, which triggers major mood effects, delusions
and hallucinations, and cannabinoid from hemp (legal in all U.S. states) and uniquely
therapeutic with intractable seizures as well as other medical issues- high levels of
CBD which does not induce psychiatric symptoms and low levels of THC, which
has no demonstrated health benefits- might want to locate Sanjai Gupta TV special
on CBD dramatic benefits for intractable childhood seizure
No not in my country I had read it was quite expensive in an article but I probably confused it was expensive not the most expensive Actually the opiate use of Middle East confused my mind why Nigeria doesnt use opiates in stead of cannabis like Iran and Afganistan I m student yet and I m reseaching drug addiction for the first time I have recently learnt all these drugs have different cost subclasses and the reason of opiate use of Middle East is the earth type of Afganistan but thank you very much for your concern and answer