Personal influence, reference groups, family influence, and culture are types of influence on the consumer purchase decision process.

Social influence.

Explanation:Social influence are influences of reference group,family and culture which influences a customer's decision in buying.

In many cases,a reference group endorses a product before a consumer buys the product.

Family influence also has a large impact on the customer's decision.If the product has been bought by the consumer's family,the family gives her good or bad feed back on the product,this will go a long way in the purchase decision.

The culture of the consumer is also a social determining factor.if a product is unacceptable In the consumer's culture,such product will not be purchased by the consumer.

All theses are social influences that determines a consumer's buying decision.

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.