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Accessibility statement
Qualification dates
StartEnd
03 Oct 2026Jun 2027
Looking through the lens of competing economic theories and policies, you will learn how economics can help analyse the current challenges facing the global economy. This will include how to manage a country’s economic growth in a globalised world; the socio-economic impacts of international trade; how multinational companies influence the distribution of wealth through global value chains; the role of finance for economic development; the causes and consequences of financial crises and how to address the challenge of climate change.
The module equips you with the theoretical tools necessary to understand contemporary developments in the global economy. A pluralist view of economic theory is adopted, enabling you to appreciate the debates between different approaches. You'll learn about international macroeconomics, with discussions of international transactions, growth, trade, finance, the climate crisis and more. The module is made up of the following three blocks, plus additional sections that aim to develop skills that are part of the economist’s skill set, such as mathematical modelling, debating on economic issues and using MS Excel.
Block 1: The Big Questions and Initiatives

Block 1 identifies the global economic challenges of the twenty-first century from a historical perspective, the actors behind global economic governance, and the different types of economic goals identified by international institutions. It also discusses accounting methods for analysing international transactions and how economists choose and use economic models.
Block 2: Growth and Trade

In this block, you'll learn theories of growth, which explain what factors drive economic development and their implications for inequality. You'll also learn the core theories describing global commercial interactions, such as trade between countries. For example, how multinational corporations are key players in global networks of production and what are the economic mechanisms that determine distinctive power distributions across global social actors.
Block 3: Finance, Macroeconomics, and Global Challenges

Block 3 analyses the open economy, including the role of finance in development, the challenges that international financial transactions pose to policymakers, and economic and financial crises. It also looks at the suitability of traditional models to analysing new global economic challenges on the horizon, including the climate and care crises. You'll also have the opportunity to debate an international economic policy issue with your fellow students.
Throughout the module, you'll develop mathematical skills, including introductory calculus and how economists use mathematics to model global economic challenges.
There are no formal entry requirements. However, this is an OU level 3 module, and therefore, it builds on study skills and subject knowledge acquired from studies at OU levels 1 and 2. OU level 3 modules are intended only for students who have recent experience of higher education in a related subject, preferably with the OU.
We strongly recommend that you study an introductory economics module, such as Essential economics: macro and micro perspectives (D217), before studying this module.
DD321 also teaches a few economics models that use mathematical methods, including calculus. The module materials include a week of activities to help with the revision of algebra, graphs, equations and logarithms. If it's a long time since you last studied mathematics, we suggest you study Discovering mathematics (MU123) or an alternative mathematical module at a pre-calculus level before studying DD321.
You’ll get help and support from an assigned tutor throughout your module.
They’ll help by:
Online tutorials run throughout the module. While they’re not compulsory, we strongly encourage you to participate. Where possible, we’ll make recordings available.
Course work includes:
We regularly review the assessments in our modules, so we may update the examination method used for this module to an in-person exam or a remotely invigilated (proctored) exam. When we are making such a change, we will make it clear on this page. If we need to make a change after you have registered, we will notify you as soon as possible. If you have additional requirements, we will support you to complete your assessments.
You’ll be provided with printed module books and have access to a module website, which includes:
The OU strives to make all aspects of study accessible to everyone, and this Accessibility Statement outlines what studying DD321 involves. You should use this information to inform your study preparations and any discussions with us about how we can meet your needs.
To find out more about what kind of support and adjustments might be available, contact us or visit our Disability support website.
Economics for a changing world starts once a year – in October.
This page describes the module that will start in October 2026.
We expect it to start for the last time in October 2033.
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