Acknowledgements

This free course was written by Laurie Knell. It was first published in February 2021.

Except for third party materials and otherwise stated in the course and in the acknowledgements section (see terms and conditions [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] ), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence.

The material acknowledged below is Proprietary and used under licence (not subject to Creative Commons Licence). Grateful acknowledgement is made to the following sources for permission to reproduce material in this free course:

Images

Course image: Photo by Bill Oxford in Unsplash

Figure 1: JEL/Pixabay.com

Figure 2: The Open University

Figure 3: The Open University

Figure 4: StarFlames/Pixabay.com

Audio-visual

Activity 5: ©The Open University 2021

Every effort has been made to contact copyright owners. If any have been inadvertently overlooked, the publishers will be pleased to make the necessary arrangements at the first opportunity.

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