A Harvard Business Review study suggests women are getting more top jobs.  Attributes at the top also reflect some broader trends within the Fortune 100 over the past three decades, such as a decrease in heavy industry and energy companies, which have fewer women at all levels of management, and a proliferation of health care and retail companies, which have more women. The study’s most striking findings have emerged in four areas: career trajectory, education, diversity, and hierarchy within the senior ranks.  Top Jobs in Business