Publications

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2021
Working Paper

The Demand for Executive Skills

By: Stephen Hansen, Raffaella Sadun, Tejas Ramdas and Joseph B. Fuller

We use a unique corpus of job descriptions for C-suite positions to document skills requirements in top managerial occupations across a large sample of firms. A novel algorithm maps the text of each executive search into six separate skill clusters reflecting... View Details

Keywords: C-Suite; Jobs and Positions; Competency and Skills; Management Skills; Job Search; Job Design and Levels

2015
Article

Scalable Detection of Anomalous Patterns With Connectivity Constraints

By: Skyler Speakman, Edward McFowland III and Daniel B. Neill

We present GraphScan, a novel method for detecting arbitrarily shaped connected clusters in graph or network data. Given a graph structure, data observed at each node, and a score function defining the anomalousness of a set of nodes, GraphScan can efficiently and... View Details

Keywords: Biosurveillance; Event Detection; Graph Mining; Scan Statistics; Spatial Scan Statistic

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2007
Working Paper

Global Competitors as Next-Door Neighbors: Competition and Geographic Concentration in the Semiconductor Industry

By: Minyuan Zhao and Juan Alcacer

Despite the many advantages offered by technology clusters, firms located in them face the risk of losing valuable knowledge to nearby competitors. In this study, we argue that multi-location firms strategically organize their R&D activities to appropriate the value of... View Details

Keywords: Information Technology; Industry Clusters; Innovation and Invention; Geographic Location; Competitive Strategy; Globalization; Semiconductor Industry

SSRN

January 2013 (Revised June 2016)
Case

The Basque Country: Strategy for Economic Development

By: Michael E. Porter, Christian H.M. Ketels and Jesus M. Valdaliso

The Basque country, with a population of 2.1 million and covering 7,233 square kilometers, is an autonomous region located in the north of Spain, physically separated from it by the Pyrenees Mountains. Presents the history of the region—highly prosperous at the turn of... View Details

Keywords: History; Crime and Corruption; Industry Clusters; Competitive Strategy; Microeconomics; Developing Countries and Economies; Government and Politics; Basque Provinces; Spain

2011
Article

Scalable Detection of Anomalous Patterns With Connectivity Constraints

By: Skyler Speakman, Edward McFowland III and Daniel B. Neill

We present GraphScan, a novel method for detecting arbitrarily shaped connected clusters in graph or network data. Given a graph structure, data observed at each node, and a score function defining the anomalousness of a set of nodes, GraphScan can efficiently and... View Details

Keywords: Biosurveillance; Event Detection; Graph Mining; Scan Statistics; Spatial Scan Statistic

January 2002 (Revised March 2011)
Case

Finland and Nokia: Creating the World's Most Competitive Economy

By: Michael E. Porter and Orjan Solvell

Finland, with a special language and culture, has developed as a country in between the west (the Nordic region and Europe) and the east (especially its neighbor Russia). In the 1980s, a process started of moving out of an investment-driven economy into an... View Details

Keywords: Development Economics; Economic Growth; Growth and Development Strategy; Industry Clusters; Business and Government Relations; Competitive Strategy; Telecommunications Industry; Finland

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Article

Visualizing and Measuring Software Portfolio Architecture: A Power Utility Case

By: Robert Lagerström, Carliss Y. Baldwin and Alan MacCormack

In this paper, we test a Design Structure Matrix (DSM) based method for visualizing and measuring software portfolio architectures. Our data is drawn from a power utility company, comprising 192 software applications with 614 dependencies between them. We show that the... View Details

Keywords: Applications and Software; Infrastructure; Utilities Industry

2014
Working Paper

Visualizing and Measuring Software Portfolio Architectures: A Flexibility Analysis

By: Robert Lagerstrom, Carliss Y. Baldwin, Alan MacCormack and David Dreyfus

In this paper, we test a method for visualizing and measuring software portfolio architectures and use our measures to predict the costs of architectural change. Our data is drawn from a biopharmaceutical company, comprising 407 architectural components with 1,157... View Details

Keywords: Design Structure Matrices; Software Architecture; Flexibility; Software Application Portfolio; Complexity; Applications and Software; Forecasting and Prediction

April 2006 (Revised April 2012)
Case

Ghana: National Economic Strategy

By: Michael E. Porter and Kjell Ke-Li Carlsson

Set in the year 2001, as President John Kufuor contemplates a national economic strategy following his election in the first democratic transfer of power in Ghana's history. Focuses on Ghana's long history of poor economic performance and intractable poverty,... View Details

Keywords: History; Economic Growth; Government Administration; Developing Countries and Economies; Growth and Development Strategy; Ghana

August 2009
Article

Rewriting History

By: Alexander Ljungqvist, Christopher J. Malloy and Felicia Marston

We document widespread ex post changes to the historical contents of the I/B/E/S analyst stock recommendations database. Across a sequence of seven downloads of the entire I/B/E/S recommendations database, obtained between 2000 and 2007, we find that between 6,594... View Details

Keywords: Competency and Skills; Stocks; Profit; Market Transactions; Reputation; Financial Services Industry

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2008
Working Paper

Rewriting History

By: Alexander Ljungqvist, Christopher J. Malloy and Felicia Marston

We document widespread ex post changes to the historical contents of the I/B/E/S analyst stock recommendations database. Across a sequence of seven downloads of the entire I/B/E/S recommendations database, obtained between 2000 and 2007, we find that between 6,594... View Details

Keywords: Competency and Skills; Stocks; Profit; Market Transactions; Reputation; Financial Services Industry

March 2011 (Revised May 2012)
Case

Shanghai Zhangjiang Hi-Tech Park Development Co., Ltd.

By: Robert G. Eccles, Catherine Zhang, Cheng-hua Tzeng, Liang Cheng and Penelope Rossano

This case is about the establishment, growth, and direction of the Shanghai Zhangjiang Hi-Tech Park ("Zhangjiang Park"), which is located in the Pudong New Area of Shanghai. Considered to be one of the most competitive hi-tech industry clusters in China, the combined... View Details

Keywords: Industry Clusters; Information Technology; Capital Markets; Urban Development; Buildings and Facilities; Competition; Business Strategy; Governing and Advisory Boards; Technology Industry; Real Estate Industry; Shanghai