000			02474cam a22003617 4500
001			w23782
003			NBER
005			20211020104815.0
006			m o d
007			cr cnu||||||||
008			210910s2017 mau fo 000 0 eng d
100	1		_aBloom, Nicholas. _96437
245	1	0	_aAre Ideas Getting Harder to Find? / _cNicholas Bloom, Charles I. Jones, John Van Reenen, Michael Webb.
260			_aCambridge, Mass. _bNational Bureau of Economic Research _c2017.
300			_a1 online resource: _billustrations (black and white);
490	1		_aNBER working paper series _vno. w23782
500			_aSeptember 2017.
520	3		_aIn many growth models, economic growth arises from people creating ideas, and the long-run growth rate is the product of two terms: the effective number of researchers and their research productivity. We present a wide range of evidence from various industries, products, and firms showing that research effort is rising substantially while research productivity is declining sharply. A good example is Moore's Law. The number of researchers required today to achieve the famous doubling every two years of the density of computer chips is more than 18 times larger than the number required in the early 1970s. Across a broad range of case studies at various levels of (dis)aggregation, we find that ideas -- and in particular the exponential growth they imply -- are getting harder and harder to find. Exponential growth results from the large increases in research effort that offset its declining productivity.
530			_aHardcopy version available to institutional subscribers
538			_aSystem requirements: Adobe [Acrobat] Reader required for PDF files.
538			_aMode of access: World Wide Web.
588	0		_aPrint version record
690		7	_aO3 - Innovation • Research and Development • Technological Change • Intellectual Property Rights _2Journal of Economic Literature class.
690		7	_aO4 - Economic Growth and Aggregate Productivity _2Journal of Economic Literature class.
700	1		_aJones, Charles I. _913747
700	1		_aVan Reenen, John. _922182
700	1		_aWebb, Michael.
710	2		_aNational Bureau of Economic Research.
830		0	_aWorking Paper Series (National Bureau of Economic Research) _vno. w23782.
856	4	0	_uhttps://www.nber.org/papers/w23782
856			_yAcceso en línea al DOI _uhttp://dx.doi.org/10.3386/w23782
942			_2ddc _cW-PAPER
999			_c324340 _d282902