By Eric Auchard
FRANKFURT (Reuters) - Research and development spending by the world's biggest companies is accelerating into software and services while investment in physical products is falling sharply, an annual study by consulting firm PwC's Strategy& unit has found.The study is both a reflection of current spending priorities by the top 1,000 companies in North America, Europe, Japan, China and the rest of the world, but also a benchmark against which many firms will judge their future growth plans.The need to stay competitive was the main reason cited for the shift to software and services by decision-makers, as firms that are growing faster were found to spend 25 percent more of their budgets on software than slower-growing ones.The 2016 Global Innovation 1000 Study released on Monday found that by 2018, the healthcare industry will overtake computer and electronic hardware as the top R&D sector, spending $165 billion versus $159 billion.Now in its 12th year, the report highlights dramatic corporate budget shifts that are likely to affect decisions made about everything from competitive strategy to merger and acquisition plans to future hiring to meet new business demands. "Companies will recruit less mechanical engineers and more software engineers," said Barry Jaruzelski, innovation and R&D expert for Strategy& and principal with PwC U.S.The number of firms where electrical engineers are projected to be the top technical speciality will fall by more than one-third to 13 percent by 2020, while companies where data engineers predominate will double to 16 percent in the same time frame, the report said, posing challenges both for higher education and the job market.The vast majority of acquisitions in the past five years - 71 percent – added software or services capabilities, the study said.By 2020, software and Internet R&D budgets of $129 billion are forecast to overtake automotive R&D at a projected $105 billion. This partly reflects an aggressive push by automakers and industrial firms to develop new software to connect up vehicles, assembly lines and finished products to the Internet.Volkswagen