microeconomics paragraphs

PLEASE FIND ONE ARTICLE FROM WITHIN THE LAST 3 YEARS THAT YOU PROVIDE THE LINK FOR; WRITE THREE FULL PARAGRAPHS WITH A MINIMUM OF 6 SENTENCES EACH ALIGNING ANY OF THE FOLLOWING CONCEPTS TO THE ARTICLE. YOU DO NOT NEED TO FIND THE EXACT TERMS IN THE ARTICLE, YOU NEED TO ALIGN THEM AS YOU SEE THE CONNECTIONS. THE CONCEPTS ARE:
A.) THE MONOPOLISTIC COMPETITION MARKET MODEL
B.)PRODUCT DIFFERNTIATION
C.)PRODUCTIVE AND ALLOCATIVE EFFICIENCY
D.) NONPRICE COMPETITION