How do keynesian economic policies differ from the traditional laissez-faire policies developed by adam smith?

How success was the first day of the bus boycott

When randy, a general manager of a national retailer, moved to a different store in his company that was having difficulty, he knew that sales were low and after talking to his employees, he found morale was also low. at first randy thought attitudes were poor due to low sales, but after working closely with employees, he realized that the poor attitudes were actually the cause of poor sales. randy was able to discover the cause of the problem by utilizing skills.

Wo firms, a and b, each currently dump 50 tons of chemicals into the local river. the government has decided to reduce the pollution and from now on will require a pollution permit for each ton of pollution dumped into the river. it costs firm a $100 for each ton of pollution that it eliminates before it reaches the river, and it costs firm b $50 for each ton of pollution that it eliminates before it reaches the river. the government gives each firm 20 pollution permits. government officials are not sure whether to allow the firms to buy or sell the pollution permits to each other. what is the total cost of reducing pollution if firms are not allowed to buy and sell pollution permits from each other? what is the total cost of reducing pollution if the firms are allowed to buy and sell permits from each other? a. $3,000; $1,500 b. $4,500; $3,500 c. $4,500; $4,000 d. $4,500; $2,500