What is sustainable investing?

What is sustainability?

Ever more people are asking questions about sustainability, and the topic is also receiving more media attention. Animal welfare, fossil fuels, labour rights, and meat consumption, are just a few of the sustainability topics that are growing in importance. But, what exactly is sustainability? 

Sustainability can be defined in two ways.
In a narrow sense, the term refers to the property of “long-term existence in the right way”, also described as “permanence” and “consistency”. 
On the other hand, sustainability can be considered broadly, which is also the way the concept is understood in today’s society. A broad approach does not provide an unambiguous definition. Sustainability comprises several elements, each with their individual meaning. Moreover, it is dynamic in that its interpretation follows developments in various domains and the social debate. 



Sustainability considered broadly, generally consists of three domains: economy, environment, and social issues. 


These three main domains overlap and point to socio-ecological, socio-economic and eco-economic challenges such as, health and safety, training and development, and energy efficiency, respectively.


The central point, where the three areas meet, is considered as sustainability.  


Forum Ethibel uses the concept of sustainability in a broad sense. ESG factors ( environment – social – good governance) are the leitmotiv of our operations. 

Sustainable investment

The importance of sustainability is increasing, and sustainable investment is also on the rise. More and more investors – both private and institutional – want to know whether their capital is used for sustainable purposes. Increasingly, they attach importance to the sustainable nature of a financial product – both in savings and investment products – as well as of the asset manager itself. Financial players have no choice but to respond by developing sustainable products on the one hand and integrating sustainability into their operations and policies on the other.

Sustainability strategies

Sustainable investments do not only take into account financial aspects, but also look at extra-financial elements. Sustainable products are products that use explicit, systematic and balanced social criteria when selecting the values in which they will invest (MIRA, 2018).

Extra-financial factors can be integrated in various ways. There are currently seven sustainability strategies that regularly recur: seven ways of making sustainable investments. These strategies are in line with the definitions of sustainable investment, defined by Eurosif (European Sustainable Investment Forum) and GSIA (Global Sustainable Investment Alliance). Febelfin – the representative of the Belgian financial sector – also refers to these definitions when they talk about sustainable investments. 

Negative approach

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Negative exclusion criteria

Negative exclusion criteria

Exclusion of undesirable sectors, activities or companies, such as the tobacco industry, weapon products, gambling, … 
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Norm-based screening

Excluding organisations that (repeatedly) violate internationally recognised standards. The UN Global Compact is increasingly recognised as the standard for sustainable investments. 

Positive approach

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Integrating ESG factors

Systematically consider the environment, people and internal governance in the assessment of organizations, in addition to the traditional financial analysis. 

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‘Best-in-class’ approach

Select the best performers in each sector, based on their ESG performance. 

Specific focus

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Impact investment & social investments

Targeted investments that try to solve social and environmental problems.

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Thematic sustainable investment

Focus on specific themes such as climate change, renewable energy, sustainable agriculture, education, health, etc. 

Active ownership

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Engagement & voting based on ESG

Use shareholder rights to enter into a direct dialogue with a company. Pursue ESG objectives by submitting proposals and voting at shareholders’ meetings. 


Sustainable products increasingly take into account multiple sustainability strategies. For example, many investment products apply the first four approaches (positive & negative) in their sustainability policy. There is also a critical note, though. A product often comes across as very sustainable when all the boxes are ‘ticked’ and it refers to the implementation of the sustainability strategies. However, this is not always true, as the depth of each strategy can vary greatly. 
We illustrate this with the examples below: 

  • Negative approach: exclusion
    Negative exclusion criteria used by different players may differ significantly from each other. For example, one player might exclude companies with more than half of their turnover from tobacco companies, whereas another would opt for zero tolerance. 
  • Positive approach: ‘best-in-class’
    In the ‘best-in-class’ approach, the selection of the best 50% within a sector is a popular application. However, it is up to each player to decide on this threshold. Therefore, it is possible to be both more and less strict and to package this as a ‘best-in-class’ selection. 
  • Specific focus: thematic investment
    Sustainable products that focus on climate change are common. However, the way in which this is done can vary significantly from one product developer to another. Are they only looking at producers of renewable energy or do they also include coal producers that are trying to reduce greenhouse gas emissions?
    Besides, it is possible that, precisely because of the focus on the environment, social performance or good governance are ignored. As a result, a company in a ‘green’ investment portfolio may produce only renewable energy, but may not respect its employees’ labour rights. 


How a sustainability strategy is applied, the extent to which a subject is considered essential, and the definition of sustainability used, make sustainable investing complex. 

With increasing attention to climate issues, topics such as fossil fuels and high greenhouse gas emissions have been the subject of much debate. There are many different views on the extent to which companies involved in these activities can be integrated into a sustainable financial product. While some players opt for total exclusion, others choose to integrate them. The vision on the transition to renewable energy and the application of engagement have roles to play in this. Some believe that it is precisely those companies that have the means to research renewable energy and that they should continue to receive investments. Besides, more and more people believe in supporting companies, in their transition to sustainability, through active ownership. 

Although some themes are always a subject of discussion, there are clear lines to be drawn in certain areas. In general, we can say that companies involved in arms or tobacco production, pornography or gambling, are often entirely or partially excluded from sustainable investment products.

There is also no doubt about controversial weapons (anti-personnel mines, cluster bombs, etc.). These types of weapons are excluded by Belgian law. Therefore, actively managed investment products must avoid any involvement in them. 


How can I invest sustainably?

Own norms and values are the basis

Just as sustainability is given a personal touch, the same applies to sustainable investments. After all, sustainable investment starts with defining one’s norms and values. What do you think is essential or important to you? As with financial profiling – checking whether someone wants to invest defensively or offensively and what the return expectations are – a sustainability exercise must also be carried out. Ideally, sustainable investments should reflect the emphases that a person places in their definition of sustainability and their views on society. 

Transparency is essential

It became clear that the mapping of the sustainable nature of an investment product is complicated because of the different definitions and various applications of sustainability strategies. Besides, the increasing demand for sustainable investment products means that sustainability is often used as a marketing strategy. This entails the danger of greenwashing, i.e. making products appear greener than they are. 

To counter all of the above, more attention is being paid to transparency. In the meantime, transparency is central to the whole story of sustainable investment. Customers should be able to know what investments are involved in a product. It is essential to read the prospectus and commercial documents attentively and ask additional questions to the provider.

In addition, it is necessary to check whether products carry labels and, if they do, what they exactly mean. There are different labels, each with their own content and focus. For example, Europe is currently working on an eco-label, which focuses on a positive impact on the climate. Febelfin has developed a sustainability label in which all ESG factors (environment, social, good governance) are integrated. Labelling financial products contributes to transparency and provides some overview of the wide range of sustainable investment products on offer. 

Sustainable investment in Belgium


Sustainable saving or investing is possible with many financial players in Belgium:


  • Bank branches, insurance brokers or agents
  • Asset managers, pension funds or other asset managers
  • Some companies, such as lenders, crowd funders and recognised cooperatives

As mentioned above, in the first instance it is essential to be well-informed about what sustainable investments are on offer and what the specifications are for each product.

You can find more information on sustainable investments in Belgium in the MIRA study by Forum Ethibel. This annual report offers concrete figures and highlights several themes about sustainability in the financial world. Consult the reports here