Efficacy of plastic bag bans | UDaily - University of Delaware Papp, the study’s lead author, said the plastic collected in shoreline cleanups can serve as a proxy for the total amount of plastic litter in the local marine or aquatic environment “A lot of the previous economics literature on plastic bag policies has used checkout data at the store level,” Papp said
Charging for plastic shopping bags can actually lead to . . . Local laws enforcing bans or fees for plastic shopping bags are associated with a 25 to 47 percent decrease in plastic bag litter found during shoreline cleanups, according to a new study in the
Plastic bag bans help: Study finds up to 47% drop in . . . A new study from the University of Delaware and Columbia University has taken a thorough look at plastic bag bans and fees in jurisdictions across the United States to gauge their effectiveness