Cem Ertur and Wilfried Koch, "Growth, Technological Interdependence and Spatial Externalities: Theory and Evidence", Journal of Applied Econometrics, Vol. 22, No. 6, 2007, pp. 1033-1062. The data file data91.txt and the Matlab file data91.m are zipped in the file ek-data.zip. Both are ASCII files in DOS format. Unix users should use "unzip -a". In order to estimate the model, we use Matlab routines of James Lesage and Kelly Pace (for the SALE estimation), respectively found at: http://www.spatial-econometrics.com/ for the routines of James Lesage http://www.spatial-statistics.com/ for the routines of Kelly Pace In order to replicate our estimation, it is necessary to download their routines and use the joint m.file: data91.m The data file data91.txt is in text format. It is in the form of a 91x7 matrix. The variables are as follows: xlong : longitude of capital ylat : lattitude of capital lny60 : logarithms of the initial level of per worker income (in 1960) lny95 : logarithms of the level of per worker income in 1995 gy : average rate of growth between 1960 and 1995 computed as (lny95-lny60)/35 lns : logarithms of the average investment rate of the period 1960-1995 lnngd : logarithms of the average rate of growth of working-age population (n) plus 0.05. The 91 observations are as follows: country country isocode Angola AGO Argentina ARG Australia AUS Austria AUT Burundi BDI Belgium BEL Benin BEN Burkina Faso BFA Bangladesh BGD Bolivia BOL Brazil BRA Botswana BWA Central African Republic CAF Canada CAN Congo, Republic of COG Switzerland CHE Chile CHL Cote d`Ivoire CIV Cameroon CMR Colombia COL Costa Rica CRI Denmark DNK Dominican Republic DOM Ecuador ECU Egypt EGY Spain ESP Ethiopia ETH Finland FIN France FRA United Kingdom GBR Ghana GHA Greece GRC Guatemala GTM Hong Kong HKG Honduras HND Indonesia IDN India IND Ireland IRL Israel ISR Italy ITA Jamaica JAM Jordan JOR Japan JPN Kenya KEN Korea, Republic of KOR Sri Lanka LKA Morocco MAR Madagascar MDG Mexico MEX Mali MLI Mozambique MOZ Mauritania MRT Mauritius MUS Malawi MWI Malaysia MYS Niger NER Nigeria NGA Nicaragua NIC Netherlands NLD Norway NOR Nepal NPL New Zealand NZL Pakistan PAK Panama PAN Peru PER Philippines PHL Papua New Guinea PNG Portugal PRT Paraguay PRY Rwanda RWA Senegal SEN Singapore SGP Sierra Leone SLE El Salvador SLV Sweden SWE Syria SYR Chad TCD Togo TGO Thailand THA Trinidad & Tobago TTO Tunisia TUN Turkey TUR Tanzania TZA Uganda UGA Uruguay URY USA USA Venezuela VEN South Africa ZAF Congo, Dem. Rep. ZAR Zambia ZMB Zimbabwe ZWE