个PearsonEdexcelINTERNATIONAL ADVANCED LEVELECONOMICSSPECIFICATIONPearson Edexcel International Advanced Subsidiary in Economics(XEC11)Pearson Edexcel International Advanced Level in Economics (YEC11)First teaching September 2018First examination from January 2019First certification from August 2019(Intemational Advanced Subsidiary)and August 2020(International Advanced Level)Issue 2Edexcel,BTEC and LCCI qualificationsEdexcel,BTEC and LCCI qualifications are awarded by Pearson,the UK's largest awardingbody offering academic and vocational qualifications that are globally recognised andbenchmarked.For further information,please visit our qualification website atqualifications.pearson.com.Altematively,you can get in touch with us using the details onour contact us page at qualifications.pearson.com/contactusAbout PearsonPearson is the world's leading learning company,with 35,000 employees in more than70 countries working to help people of all ages to make measurable progress in their livesthrough learning.We put the leamer at the centre of everything we do,because whereverlearning flourishes,so do people.Find out more about how we can help you and yourlearners at qualifications.pearson.comAcknowledgementsThis specification has been produced by Pearson on the basis of consultation with teachers,examiners,consultants and other interested parties.Pearson would like to thank all thosewho contributed their time and expertise to the specification's development.References to third party material made in this specification are made in good faith.Pearsondoes not endorse,approve or accept responsibility for the content of materials,which maybe subject to change,or any opinions expressed therein.(Material may include textbooks,joumals,magazines and other publications and websites.)All information in this specification is correct at time of going to publication.ISBN9781446949542All the material in this publication is copyrightC Pearson Education Limited 2018Summary of International Advanced Subsidiary/AdvancedLevel Economics specification Issue 2 changesSummary of changes made between previous issue and thisPagecurrent issuenumberContent overview for Unit 3 has been changed from 'Measures of economic10,32performance'into 'Types and sizes of businesses'.The title of Appendix 6 has been amended.68Quantitative skill 6 'Calculate total revenue'has been added to the IAS69table in Appendix 7.If you need further information on these changes or what they mean,contact us via ourwebsite at:qualifications.pearson.com/en/support/contact-us.html.