Indeed, government investment played a central role in developing nearly all of the technologies that make the iPhone a smart phone: the Internet, GPS, touchscreens, and the advances in voice recognition underlying Siri. Similarly, in many countries, it is the public sector that is leading the way in making green technology possible.
这些类型的公共投资对于建立和塑造新市场至关重要。事实上，政府投资在几乎所有让iPhone成为智能电话的技术的研发中都起到了核心作用，包括互联网、全球定位系统、触摸屏和作为Siri基础的声音识别技术等。类似地，在许多国家，是公共部门引领着绿色技术成为可能。