Introduction to Network Analysis



Network Analysis Assignment #4

Due November 8, 2007

The purpose of this exercise is to investigate structural equivalences in a system of interorganizational relations. Import the DL file GIS9940.txt into UCINET and save. The matrix cell entries are the numbers of new dyadic strategic alliance partnerships announced in 1999 by the most active multinational corporations in the Global Information Sector (described in the lecture on interorganizational relations). The back of this sheet displays the labels, formal names, headquarter countries, and primary industries of these 40 firms.

1. Click “Network/Roles & Positions/Structural/CONCOR” and split this interorganizational network into successive 2, 4, and 8 blocks (i.e., specify maximum depth of splits=3), based on similarity of strategic alliances with other firms. In the dropbox, do not include the matrix transpose and ignore the self ties. Save the “First correlation matrix” (as a UCINET datafile, giving it a “filename.##h” and “filename.##d”). From the cluster diagram output, save the tree diagram as a Bitmap file (“name.bmp”); also save your CONCOR output log for later reference.

2. Create a two-dimensional map using the saved first correlation matrix. Click “Tools/MDS/nonmetric MDS” and specify these entries in the dropbox: No of dimensions = 2; Similarities; Starting Configuration = Metric. From the output log file, note the stress value. From the Scatter Plot Viewer, save the two-dimensional diagram as an enhanced metafile (“name.emf”) or plain metafile (“name.wmf”), depending on which version of UCINET you use (to save, click the floppy-disk icon at the upper right of the Viewer).

In your brief report describing the results of your analyses, include three displays by cut-and-paste: (1) the Partition Diagram in the CONCOR output (showing which firms were grouped with which at each split; use a nonproportional font such as Courier for this table, so the columns are correctly aligned); (2) the CONCOR Density Matrix (showing the mean number of alliances within and between the eight structurally equivalent positions); and (3) the two-dimensional MDS diagram. Use MS Word graphics (or your freehand pencil/pen) to draw contiguity lines on the MDS diagram that enclose all members of each structurally equivalent position at the four-position level (which you can identify from the CONCOR Partition Diagram). Discuss your results, using relevant information about the GIS organizations’ countries and industries that may help you to interpret structural equivalences among participants in the 1999 GIS strategic alliance network.

|# LABEL |NAME |COUNTRY |PRIMARY INDUSTRY |

| 1 3COM |3Com Corp |USA |Computer peripheral equipment |

| 2 ALCAT |Alcatel Alsthom |France |Telecom equipment |

| 3 AMD |Advanced Micro Devices |USA |Semiconductors |

| 4 AOL |America Online Inc |USA |Information retrieval |

| 5 ATT |American Telephone & Telegraph |USA |Telecommunications |

| 6 BCE |Bell Canada Enterprises |USA |Telecommunications |

| 7 BLM |Bertelsmann AG |Germany |Periodicals Publishing |

| 8 BULL |Compagnie des Machines Bull |France |Data Processing |

| 9 CISCO |Cisco Systems |USA |Communication equipment |

|10 COMPAQ |Compaq Computer Co |USA |Computers |

|11 CW |Cable & Wireless Plc |Britain |Telecommunications |

|12 DELL |Dell Computer Corp |USA |Computers |

|13 DT |Deutsche Telekom AG |Germany |Telecommunications |

|14 ERICS |Ericsson LM Telephone Co |Sweden |Telecom equipment |

|15 FT |France Telecom |France |Telecommunications |

|16 FUJIT |Fujitsu Limited |Japan |Computers |

|17 HIT |Hitachi Ltd |Japan |Computers |

|18 HP |Hewlett-Packard Co |USA |Computers |

|19 IBM |International Business Machines Corp |USA |Computers |

|20 INTEL |Intel Corp |USA |Semiconductors |

|21 MATSU |Matsushita Electric Industrial Co, Ltd |Japan |Audiovisual equipment |

|22 MICROS |Microsoft Corp |USA |Software |

|23 MITSUB |Mitsubishi Electric Corp |Japan |Audiovisual equipment |

|24 MOTOR |Motorola Inc |USA |TV equipment |

|25 NEC |NEC Corp |Japan |Computers |

|26 NOKIA |Nokia Corp |Finland |Telecom equipment |

|27 NS |National Semiconductor Corp |USA |Semiconductors |

|28 NTT |Nippon Telephone & Telegraph Corp |Japan |Telecommunications |

|29 ORACLE |Oracle Corp |USA |Software |

|30 PHIL |Philips Electronics NV |Netherlands |TV equipment |

|31 SAMS |Samsung Electronics Co Ltd |South Korea |Semiconductors |

|32 SAP |SAP AG |Germany |Software |

|33 SIEM |Siemens AG |Germany |Computer peripheral equipment |

|34 SONY |Sony Corp |Japan |Audiovisual equipment |

|35 SUN |Sun Microsystems Inc |USA |Computers |

|36 SYBASE |Sybase Inc |USA |Software |

|37 TOSH |Toshiba Corp |Japan |Audiovisual equipment |

|38 TSA |Thomson SA |France |Audiovisual equipment |

|39 UNISYS |Unisys Corp |USA |Computers |

|40 USW |US West Inc |USA |Telecommunications |

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