Documents 2003/9
نویسنده
چکیده
In most OECD-countries, labour demand has shifted from unskilled to skilled over time. Many analyses of this phenomenon focus either on technical change, capital-skill complementarity or mutual labour substitution. Applying a more general approach enables us to explore the relative importance of different factors behind the shift in labour demand in Norwegian manufacturing. A multivariate error-correction model of the cost-shares of skilled and unskilled labour, materials and energy is estimated. The results show that skilled-biased technical change, primarily due to a positive effect on skilled labour and less due to a negative effect on unskilled labour, explains much of the shift in labour demand. In addition, mutual labour substitution and capital stock growth are important.
منابع مشابه
Efficient extraction of schemas for XML documents
In this paper, we present a technique for efficient extraction of concise and accurate schemas for XML documents. By restricting the schema form and applying some heuristic rules, we achieve the efficiency and conciseness. The result of an experiment with real-life DTDs shows that our approach attains high accuracy and is 20 to 200 times faster than existing approaches. 2002 Elsevier Science ...
متن کاملEfficient preprocessing of XML queries using structured signatures
The paper proposes a preprocessing scheme for efficient processing of XML queries in XML-based information retrieval systems. For the preprocessing, we use a signature-based approach. In the conventional (flat document-based) information retrieval systems, user queries consist of keywords and boolean operators, and thus signatures are structured in a flat manner. However, in XML-based informati...
متن کاملThe CLEF 2003 Cross-Language Spoken Document Retrieval Track
The current expansion in collections of natural language based digital documents in various media and languages is creating challenging opportunities for automatically accessing the information contained in these documents. This paper describes the CLEF 2003 track investigation of Cross-Language Spoken Document Retrieval (CLSDR) combining information retrieval, cross-language translation and sp...
متن کاملThree-dimensional Molecular Imaging by Infrared Laser Ablation Electrospray Ionization Mass Spec Trome Try
U.S. PATENT DOCUMENTS 5,012,052 A 4/1991 Hayes 5,338,930 A 8/1994 Chu et al. 5,965,884 A 10/1999 Laiko et al. 6,495,824 B1 12/2002 Atkinson 6,531,318 B1 3/2003 Palmer-Toy et al. 6,548,263 B1 4/2003 Kapur et a1. 6,558,946 B1 5/2003 Krishnamurthy 6,656,690 B2 12/2003 Crooke et al. 6,744,046 B2 6/2004 Valaskovic et a1. 6,941,033 B2 9/2005 Taylor et a1. 6,949,741 B2 9/2005 Cody et a1. 6,989,528 B2 ...
متن کاملEDGAR-Analyzer: automating the analysis of corporate data contained in the SEC's EDGAR database
Publicly owned companies, their officers and major investors are required to file regular disclosures with the Securities and Exchange Commission (SEC). To improve accessibility to these public documents, the SEC began developed the EDGAR (Electronic Data Gathering, Analysis and Retrieval) electronic disclosure system. This system provides ready, free access to all electronic filings made since...
متن کاملGranular Computing for the Design of Information Retrieval Support Systems
3 Information Retrieval 8 3.1 Basic Issues and Problems . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 Document Space Granulations . . . . . . . . . . . . . . . . . . . . . . 10 3.3 Query (User) Space Granulations . . . . . . . . . . . . . . . . . . . . 11 3.4 A Unified Probabilistic Model . . . . . . . . . . . . . . . . . . . . . . 12 3.5 Term Space Granulations . . . . . . . . . . . . ...
متن کامل