Firm Hierarchy and the Market for Knowledge
ABSTRACT This paper sheds light on the role of the market for knowledge in shaping a firm's hierarchy—that is, the span of control and the number of layers. We predict that the larger the extent of the market for knowledge, the larger the span of control and the fewer the layers. We test our pr...
Saved in:
Published in | Journal of economics & management strategy |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
15.10.2024
|
Online Access | Get full text |
Cover
Loading…
Abstract | ABSTRACT This paper sheds light on the role of the market for knowledge in shaping a firm's hierarchy—that is, the span of control and the number of layers. We predict that the larger the extent of the market for knowledge, the larger the span of control and the fewer the layers. We test our predictions using a rich database representing industrial firms in Italy over the period 2004–2017. Our identification strategy employs a difference‐in‐difference approach that exploits the cross‐regional variability in the extent of the local market for knowledge‐intensive business services and the cross‐industry heterogeneity in the level of technological exposure of industrial firms to such a market. We find that a thicker regional market for knowledge is associated with relatively flatter firms in industries that use knowledge‐intensive business services more intensively. The results are confirmed when we use instrumental variables for the extent of the market for knowledge, test the sensitivity of the estimates to omitted variable bias, and perform a series of robustness checks. |
---|---|
AbstractList | ABSTRACT This paper sheds light on the role of the market for knowledge in shaping a firm's hierarchy—that is, the span of control and the number of layers. We predict that the larger the extent of the market for knowledge, the larger the span of control and the fewer the layers. We test our predictions using a rich database representing industrial firms in Italy over the period 2004–2017. Our identification strategy employs a difference‐in‐difference approach that exploits the cross‐regional variability in the extent of the local market for knowledge‐intensive business services and the cross‐industry heterogeneity in the level of technological exposure of industrial firms to such a market. We find that a thicker regional market for knowledge is associated with relatively flatter firms in industries that use knowledge‐intensive business services more intensively. The results are confirmed when we use instrumental variables for the extent of the market for knowledge, test the sensitivity of the estimates to omitted variable bias, and perform a series of robustness checks. |
Author | Vatiero, Massimiliano Pieri, Fabio |
Author_xml | – sequence: 1 givenname: Fabio orcidid: 0000-0003-2035-4060 surname: Pieri fullname: Pieri, Fabio organization: Department of Economics and Management University of Trento Trento Italy, Centro Studi Luca d'Agliano Milan Italy – sequence: 2 givenname: Massimiliano orcidid: 0000-0002-2886-9870 surname: Vatiero fullname: Vatiero, Massimiliano organization: Department of Economics and Management University of Trento Trento Italy, Law Institute Università della Svizzera italiana Lugano Switzerland |
BookMark | eNotz81OAjEUBeDGYCKgG5-ga02xt_-zNETECGGj66bT3pFBZsa0JIa3F9SzOWd1km9CRv3QIyG3wGdwysMOuzIDYcBekDFoyVkFUo1Om2vHjOL2ikxK2XHOTSVhTO4Xbe7ossUcctweaegTPWyRrkP-xANthkxf--F7j-kDr8llE_YFb_57St4XT2_zJVttnl_mjysWgVtg2lmTEJLGOgWFKYmoDEeDGFUQUVTWKpOMFqCVleCEM0JLhzVqGwzUckru_n5jHkrJ2Piv3HYhHz1wf2b6M9P_MuUPfwxF3w |
Cites_doi | 10.3368/jhr.XL.4.791 10.1086/317671 10.1287/orsc.3.3.383 10.1093/ej/ueac047 10.1086/260719 10.1093/rcfs/cfx015 10.2139/ssrn.577703 10.1016/j.labeco.2012.12.003 10.1080/00343409512331348843 10.1287/mnsc.2014.2013 10.1093/jeg/lbt038 10.1093/qje/qjab049 10.1080/09654319908720551 10.1016/j.techsoc.2008.10.001 10.1146/annurev-economics-080614-115748 10.1017/CBO9780511614491.006 10.1111/j.1468-0297.2011.02433.x 10.1016/j.labeco.2017.05.013 10.1007/s11123-015-0441-3 10.1016/j.jebo.2012.07.007 10.1016/j.jebo.2022.03.023 10.1016/S0167-7187(00)00077-1 10.1086/681641 10.1093/jleo/eww008 10.1002/smj.4250171110 10.1068/c11171r 10.1111/jems.12010 10.1080/07350015.2016.1227711 10.1016/j.labeco.2013.10.001 10.1111/j.1468-0335.1937.tb00002.x 10.1093/0198288816.001.0001 10.2307/3094825 10.1093/qje/qjs016 10.1111/1468-0327.12028 10.1111/joie.12077 10.1257/app.2.4.105 10.1016/j.telpol.2013.06.003 10.1177/1536867X0800700402 10.1016/j.jet.2009.11.007 10.1016/j.euroecorev.2015.03.005 10.1086/426036 10.1086/710533 10.1057/9780230228795 10.1515/9781400829828 10.2307/2118349 10.2139/ssrn.3128850 10.1007/s11187-013-9494-8 10.1016/j.jue.2004.12.002 10.1086/259258 10.1257/aer.104.4.1120 10.1016/j.ijindorg.2021.102763 10.7551/mitpress/4451.001.0001 10.1257/aer.20140772 10.1016/S0167-2681(99)00067-0 10.1177/048661347400600206 10.1257/pol.20120298 10.1016/S0048-7333(01)00164-0 10.1093/qje/qjac038 10.1287/orsc.7.5.477 10.1002/sej.1374 10.1111/j.1467-6451.2007.00307.x 10.1257/0002828041302037 10.1257/mic.20170158 10.1287/orsc.1110.0723 10.1111/j.0022-1821.2004.00216.x 10.1016/j.ijindorg.2010.03.004 10.1080/00343404.2014.965136 10.1111/grow.12334 10.1093/qje/qjv028 10.1007/s00191-015-0400-1 10.1162/qjec.121.4.1383 10.1016/j.techfore.2008.08.001 10.1111/roie.12714 10.1177/00197939211009515 10.1086/260809 10.1162/003355398555630 10.1162/rest.88.4.759 10.1162/00335530152466241 |
ContentType | Journal Article |
DBID | AAYXX CITATION |
DOI | 10.1111/jems.12617 |
DatabaseName | CrossRef |
DatabaseTitle | CrossRef |
DatabaseTitleList | CrossRef |
DeliveryMethod | fulltext_linktorsrc |
Discipline | Economics Business |
EISSN | 1530-9134 |
ExternalDocumentID | 10_1111_jems_12617 |
GroupedDBID | .3N .GA 05W 0R~ 10A 1OB 1OC 1XV 29K 33P 4.4 50Y 50Z 51W 51Y 52M 52O 52Q 52S 52T 52U 52W 5GY 5HH 5LA 5VS 66C 702 7PT 8-0 8-1 8-3 8-4 8-5 8UM 8VB 930 A04 AABNI AAESR AAHHS AAONW AAOUF AAXRX AAYXX AAZKR ABCQN ABCUV ABJNI ABLJU ABPVW ABSOO ACAHQ ACBKW ACBMB ACCFJ ACCZN ACGFO ACGFS ACHQT ACPOU ACXQS ADBBV ADEMA ADEOM ADIZJ ADKYN ADMGS ADMHG ADXAS ADZMN AEEZP AEGXH AEIGN AEIMD AEQDE AEUQT AEUYR AFBPY AFEBI AFFPM AFGKR AFKFF AFPWT AFZJQ AHBTC AIAGR AIFKG AIURR AIWBW AJBDE AKVCP ALAGY ALMA_UNASSIGNED_HOLDINGS ALUQN AMBMR AMYDB ASTYK AZBYB AZVAB BAFTC BFHJK BMXJE BNVMJ BQESF BROTX BRXPI BY8 CITATION CS3 D-C D-D D-I DCZOG DPXWK DR2 DRFUL DRSSH DU5 EBE EBR EBS EBU EHE EOH F00 F01 G-S G.N G50 GODZA HGLYW HZI HZ~ IHE IX1 J0M K48 LATKE LC2 LC4 LEEKS LITHE LOXES LP6 LP7 LUTES LXL LXN LYRES MEWTI MK4 MRFUL MRSSH MSFUL MSSSH MXFUL MXSSH N04 N06 N9A NF~ O66 O9- OIG P2P P2W P2Y P4C PQQKQ Q.N Q11 QB0 QWB R.K ROL RX1 SUPJJ TN5 UB1 V8K W8V W99 WBKPD WEBCB WIH WII WOHZO WQZ WRC WSUWO WXSBR XG1 XYO ZL0 ZRQ ZZTAW ~IA ~WP |
ID | FETCH-LOGICAL-c1071-5876de1d5ebda4edd2c460e6eec4a2c297746d65215473182862538ebe57a61b3 |
ISSN | 1058-6407 |
IngestDate | Wed Oct 16 15:30:46 EDT 2024 |
IsDoiOpenAccess | false |
IsOpenAccess | true |
IsPeerReviewed | true |
IsScholarly | true |
Language | English |
LinkModel | OpenURL |
MergedId | FETCHMERGED-LOGICAL-c1071-5876de1d5ebda4edd2c460e6eec4a2c297746d65215473182862538ebe57a61b3 |
ORCID | 0000-0003-2035-4060 0000-0002-2886-9870 |
OpenAccessLink | https://doi.org/10.1111/jems.12617 |
ParticipantIDs | crossref_primary_10_1111_jems_12617 |
PublicationCentury | 2000 |
PublicationDate | 2024-10-15 |
PublicationDateYYYYMMDD | 2024-10-15 |
PublicationDate_xml | – month: 10 year: 2024 text: 2024-10-15 day: 15 |
PublicationDecade | 2020 |
PublicationTitle | Journal of economics & management strategy |
PublicationYear | 2024 |
References | e_1_2_10_23_1 e_1_2_10_46_1 e_1_2_10_69_1 e_1_2_10_21_1 European Commission (e_1_2_10_44_1) 2009 e_1_2_10_42_1 Garicano L. (e_1_2_10_52_1) 2016; 32 e_1_2_10_40_1 Rajan R. (e_1_2_10_81_1) 1998; 88 Tranos E. (e_1_2_10_88_1) 2015; 50 e_1_2_10_70_1 e_1_2_10_93_1 e_1_2_10_2_1 e_1_2_10_72_1 e_1_2_10_4_1 e_1_2_10_18_1 e_1_2_10_74_1 e_1_2_10_53_1 e_1_2_10_6_1 e_1_2_10_16_1 e_1_2_10_39_1 e_1_2_10_76_1 e_1_2_10_55_1 e_1_2_10_8_1 e_1_2_10_14_1 e_1_2_10_37_1 e_1_2_10_57_1 e_1_2_10_78_1 e_1_2_10_58_1 e_1_2_10_13_1 e_1_2_10_34_1 e_1_2_10_11_1 e_1_2_10_30_1 Stock J. H. (e_1_2_10_87_1) 2005 e_1_2_10_80_1 e_1_2_10_82_1 Williamson O. E. (e_1_2_10_91_1) 1985 e_1_2_10_61_1 e_1_2_10_84_1 e_1_2_10_29_1 e_1_2_10_63_1 e_1_2_10_86_1 e_1_2_10_27_1 Garicano L. (e_1_2_10_50_1) 2010; 28 e_1_2_10_65_1 e_1_2_10_25_1 e_1_2_10_48_1 e_1_2_10_67_1 e_1_2_10_24_1 e_1_2_10_45_1 e_1_2_10_22_1 e_1_2_10_43_1 e_1_2_10_20_1 e_1_2_10_41_1 Ciccone A. (e_1_2_10_32_1) 2023; 133 Miles I. (e_1_2_10_71_1) 2005 Aleksin G. (e_1_2_10_15_1) 2024 e_1_2_10_90_1 Garicano L. (e_1_2_10_51_1) 2012; 84 e_1_2_10_73_1 e_1_2_10_94_1 e_1_2_10_3_1 e_1_2_10_19_1 e_1_2_10_75_1 e_1_2_10_54_1 e_1_2_10_5_1 e_1_2_10_17_1 e_1_2_10_77_1 e_1_2_10_56_1 e_1_2_10_79_1 e_1_2_10_7_1 e_1_2_10_36_1 e_1_2_10_12_1 e_1_2_10_35_1 e_1_2_10_9_1 e_1_2_10_59_1 e_1_2_10_10_1 e_1_2_10_33_1 e_1_2_10_31_1 Wooldridge J. M. (e_1_2_10_92_1) 2010 e_1_2_10_60_1 e_1_2_10_62_1 e_1_2_10_83_1 Cooke D. (e_1_2_10_38_1) 2021; 77 e_1_2_10_64_1 e_1_2_10_85_1 e_1_2_10_28_1 e_1_2_10_49_1 e_1_2_10_66_1 e_1_2_10_26_1 e_1_2_10_47_1 e_1_2_10_68_1 e_1_2_10_89_1 |
References_xml | – ident: e_1_2_10_5_1 doi: 10.3368/jhr.XL.4.791 – ident: e_1_2_10_49_1 doi: 10.1086/317671 – ident: e_1_2_10_65_1 doi: 10.1287/orsc.3.3.383 – volume: 133 start-page: 130 issue: 649 year: 2023 ident: e_1_2_10_32_1 article-title: Estimating Cross‐Industry Cross‐Country Interaction Models Using Benchmark Industry Characteristics publication-title: Economic Journal doi: 10.1093/ej/ueac047 contributor: fullname: Ciccone A. – ident: e_1_2_10_26_1 doi: 10.1086/260719 – ident: e_1_2_10_64_1 doi: 10.1093/rcfs/cfx015 – ident: e_1_2_10_29_1 doi: 10.2139/ssrn.577703 – ident: e_1_2_10_13_1 doi: 10.1016/j.labeco.2012.12.003 – ident: e_1_2_10_75_1 doi: 10.1080/00343409512331348843 – ident: e_1_2_10_18_1 doi: 10.1287/mnsc.2014.2013 – volume-title: The Economic Institutions of Capitalism: Firms, Markets, Relational Contracting year: 1985 ident: e_1_2_10_91_1 contributor: fullname: Williamson O. E. – volume-title: Econometric Analysis of Cross‐Section and Panel Data year: 2010 ident: e_1_2_10_92_1 contributor: fullname: Wooldridge J. M. – ident: e_1_2_10_70_1 doi: 10.1093/jeg/lbt038 – ident: e_1_2_10_60_1 doi: 10.1093/qje/qjab049 – ident: e_1_2_10_66_1 doi: 10.1080/09654319908720551 – ident: e_1_2_10_72_1 doi: 10.1016/j.techsoc.2008.10.001 – ident: e_1_2_10_56_1 doi: 10.1146/annurev-economics-080614-115748 – volume: 88 start-page: 559 issue: 3 year: 1998 ident: e_1_2_10_81_1 article-title: Financial Dependence and Growth publication-title: American Economic Review contributor: fullname: Rajan R. – start-page: 80 volume-title: Identification and Inference for Econometric Models: Essays in Honor of Thomas Rothemberg year: 2005 ident: e_1_2_10_87_1 doi: 10.1017/CBO9780511614491.006 contributor: fullname: Stock J. H. – ident: e_1_2_10_12_1 doi: 10.1111/j.1468-0297.2011.02433.x – ident: e_1_2_10_20_1 doi: 10.1016/j.labeco.2017.05.013 – ident: e_1_2_10_48_1 doi: 10.1007/s11123-015-0441-3 – volume: 84 start-page: 136 issue: 1 year: 2012 ident: e_1_2_10_51_1 article-title: Learning About the Nature of Production From Equilibrium Assignment Patterns publication-title: Journal of Economic Behavior & Organization doi: 10.1016/j.jebo.2012.07.007 contributor: fullname: Garicano L. – ident: e_1_2_10_16_1 doi: 10.1016/j.jebo.2022.03.023 – ident: e_1_2_10_40_1 doi: 10.1016/S0167-7187(00)00077-1 – volume-title: IZA World of Labor 250 year: 2024 ident: e_1_2_10_15_1 contributor: fullname: Aleksin G. – ident: e_1_2_10_24_1 doi: 10.1086/681641 – volume: 32 start-page: 653 issue: 4 year: 2016 ident: e_1_2_10_52_1 article-title: The Returns to Knowledge Hierarchies publication-title: Journal of Law, Economics & Organization doi: 10.1093/jleo/eww008 contributor: fullname: Garicano L. – ident: e_1_2_10_58_1 doi: 10.1002/smj.4250171110 – ident: e_1_2_10_41_1 doi: 10.1068/c11171r – ident: e_1_2_10_36_1 doi: 10.1111/jems.12010 – ident: e_1_2_10_77_1 doi: 10.1080/07350015.2016.1227711 – ident: e_1_2_10_62_1 doi: 10.1016/j.labeco.2013.10.001 – ident: e_1_2_10_33_1 doi: 10.1111/j.1468-0335.1937.tb00002.x – ident: e_1_2_10_63_1 doi: 10.1093/0198288816.001.0001 – ident: e_1_2_10_21_1 doi: 10.2307/3094825 – ident: e_1_2_10_25_1 doi: 10.1093/qje/qjs016 – start-page: 433 volume-title: The Oxford Handbook of Innovation year: 2005 ident: e_1_2_10_71_1 contributor: fullname: Miles I. – ident: e_1_2_10_42_1 – ident: e_1_2_10_6_1 doi: 10.1111/1468-0327.12028 – ident: e_1_2_10_89_1 doi: 10.1111/joie.12077 – ident: e_1_2_10_45_1 – ident: e_1_2_10_59_1 doi: 10.1257/app.2.4.105 – ident: e_1_2_10_67_1 doi: 10.1016/j.telpol.2013.06.003 – ident: e_1_2_10_14_1 doi: 10.1177/1536867X0800700402 – ident: e_1_2_10_55_1 doi: 10.1016/j.jet.2009.11.007 – ident: e_1_2_10_86_1 – ident: e_1_2_10_47_1 – ident: e_1_2_10_28_1 doi: 10.1016/j.euroecorev.2015.03.005 – ident: e_1_2_10_4_1 doi: 10.1086/426036 – ident: e_1_2_10_23_1 doi: 10.1086/710533 – ident: e_1_2_10_39_1 – ident: e_1_2_10_78_1 – ident: e_1_2_10_84_1 doi: 10.1057/9780230228795 – ident: e_1_2_10_7_1 doi: 10.1515/9781400829828 – ident: e_1_2_10_19_1 doi: 10.2307/2118349 – ident: e_1_2_10_22_1 doi: 10.2139/ssrn.3128850 – ident: e_1_2_10_85_1 doi: 10.1007/s11187-013-9494-8 – ident: e_1_2_10_43_1 doi: 10.1016/j.jue.2004.12.002 – ident: e_1_2_10_90_1 doi: 10.1086/259258 – ident: e_1_2_10_10_1 doi: 10.1257/aer.104.4.1120 – volume: 77 year: 2021 ident: e_1_2_10_38_1 article-title: Entry Deregulation, Firm Organization, and Wage Inequality publication-title: International Journal of Industrial Organization doi: 10.1016/j.ijindorg.2021.102763 contributor: fullname: Cooke D. – ident: e_1_2_10_8_1 doi: 10.7551/mitpress/4451.001.0001 – ident: e_1_2_10_61_1 doi: 10.1257/aer.20140772 – ident: e_1_2_10_69_1 – ident: e_1_2_10_34_1 doi: 10.1016/S0167-2681(99)00067-0 – ident: e_1_2_10_68_1 doi: 10.1177/048661347400600206 – ident: e_1_2_10_17_1 doi: 10.1257/pol.20120298 – volume-title: Commission Staff Working Document year: 2009 ident: e_1_2_10_44_1 contributor: fullname: European Commission – ident: e_1_2_10_73_1 doi: 10.1016/S0048-7333(01)00164-0 – ident: e_1_2_10_2_1 doi: 10.1093/qje/qjac038 – ident: e_1_2_10_79_1 – ident: e_1_2_10_37_1 doi: 10.1287/orsc.7.5.477 – ident: e_1_2_10_74_1 doi: 10.1002/sej.1374 – ident: e_1_2_10_93_1 doi: 10.1111/j.1467-6451.2007.00307.x – ident: e_1_2_10_53_1 doi: 10.1257/0002828041302037 – ident: e_1_2_10_31_1 doi: 10.1257/mic.20170158 – ident: e_1_2_10_57_1 doi: 10.1287/orsc.1110.0723 – ident: e_1_2_10_76_1 – ident: e_1_2_10_35_1 doi: 10.1111/j.0022-1821.2004.00216.x – volume: 28 start-page: 355 year: 2010 ident: e_1_2_10_50_1 article-title: Policemen, Managers, Lawyers: New Results on Complementarities Between Organization and Information and Communication Technology publication-title: International Journal of Industrial Organization doi: 10.1016/j.ijindorg.2010.03.004 contributor: fullname: Garicano L. – volume: 50 start-page: 1113 issue: 7 year: 2015 ident: e_1_2_10_88_1 article-title: Broadband Provision and Knowledge‐Intensive Firms: A Causal Relationship? publication-title: Regional Studies doi: 10.1080/00343404.2014.965136 contributor: fullname: Tranos E. – ident: e_1_2_10_94_1 doi: 10.1111/grow.12334 – ident: e_1_2_10_3_1 doi: 10.1093/qje/qjv028 – ident: e_1_2_10_46_1 doi: 10.1007/s00191-015-0400-1 – ident: e_1_2_10_54_1 doi: 10.1162/qjec.121.4.1383 – ident: e_1_2_10_30_1 doi: 10.1016/j.techfore.2008.08.001 – ident: e_1_2_10_11_1 doi: 10.1111/roie.12714 – ident: e_1_2_10_9_1 doi: 10.1177/00197939211009515 – ident: e_1_2_10_27_1 doi: 10.1086/260809 – ident: e_1_2_10_80_1 doi: 10.1162/003355398555630 – ident: e_1_2_10_82_1 doi: 10.1162/rest.88.4.759 – ident: e_1_2_10_83_1 doi: 10.1162/00335530152466241 |
SSID | ssj0006931 |
Score | 2.432422 |
Snippet | ABSTRACT This paper sheds light on the role of the market for knowledge in shaping a firm's hierarchy—that is, the span of control and the number of layers. We... |
SourceID | crossref |
SourceType | Aggregation Database |
Title | Firm Hierarchy and the Market for Knowledge |
hasFullText | 1 |
inHoldings | 1 |
isFullTextHit | |
isPrint | |
link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV1bS8MwFA46QX0RnYp3Cvo2MtouF_so6hjKRGSDvY2mybAP3WStD_rrPUnadHhj-hJKaHrJl-Sck5zvHIQuqFRcMs4xmQiKCaMRFoJyTBURCuTVhJgsCv0H1huSuxEd1fkxDbukEO3k_VteyX9QhTrAVbNk_4CseyhUwDXgCyUgDOVSGHfTedbqpZpDnDy_OWfIvmEyGwfC-2rL7AclVJW85NwMgcz5wrRyG7XWbbg_piUnvRsL67pl03QVUD-zpB-YXVmqd01mi1sJIdFrsCVTlqufTy-xPtmzwqFaEX1zPP_bequyvB3o2O61VKlO0j8JG-cC6IwPaDs2bVfRWsgjqv0yb57qGGAsMkkl3beVMWaNO5Z774JWsaAeDLbRVtml3pUFaQetqGkTrVe0gibaqBjg-S5qadw8h5sHuHmAm2dx8wA3z-G2h4bd28F1D5dJK3AClnSAKYgXqQJJlZAxUVKGCWG-YkolJA6TUOvbTDLQmnTW50Cz-EMQOjCXKI9ZIDr7qDGdTdUB8oSvJgnrSJBlglBfgIURcK5IBFohWNGdQ3Re_fT4xcYmGX_t1qOl7jpGm_WIOEGNYv6qTkHdKsSZgeMDFq4orw |
link.rule.ids | 315,786,790,27955,27956 |
linkProvider | Wiley-Blackwell |
openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Firm+Hierarchy+and+the+Market+for+Knowledge&rft.jtitle=Journal+of+economics+%26+management+strategy&rft.au=Pieri%2C+Fabio&rft.au=Vatiero%2C+Massimiliano&rft.date=2024-10-15&rft.issn=1058-6407&rft.eissn=1530-9134&rft_id=info:doi/10.1111%2Fjems.12617&rft.externalDBID=n%2Fa&rft.externalDocID=10_1111_jems_12617 |
thumbnail_l | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=1058-6407&client=summon |
thumbnail_m | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=1058-6407&client=summon |
thumbnail_s | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=1058-6407&client=summon |