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                                                                                    Journal Article
                                                                                
                                            What are the causes of rising wage inequality in the United States?
                                        
                                        
                                        
                                        
                                                                                    
                                                                                                    During the last 15 years--especially in the 1980s--wage inequality rose in the United States. It appears that this can be explained by a secular shift in production functions favoring workers with intellectual rather than manual skills, together with slower growth in the supply of skilled labor than in the previous decade.