Editor's note: Anna Antseliovich heads the sports practice at the Moscow-based legal group Clever Consult. She also works as a senior researcher at the Federal Science Center for Physical Culture and Sport (Russia).

The Olympic Games have always been a source of genuine interest for spectators as Olympians have repeatedly demonstrated astounding capacity of the human body and mind in winning Olympic gold, or by achieving success despite all odds.

At the ancient and even the first modern Olympic Games, there was no concept of a national team; each Olympian represented only himself/herself. However, at the 1906 Intercalated Games[1] for the first time, athletes were nominated by the National Olympic Committees (‘NOCs’) and competed as members of national teams representing their respective countries. At the opening ceremony, the athletes walked under the flags of their countries. This was a major shift, which meant that not only the athletes themselves competed against each other, but so too did the nations in unofficial medal standings.  

The nomination and selection of athletes by their NOCs to compete under their national flag and represent their country is a matter of pride for the vast majority of athletes. However, to what extent does such a scheme correspond to the ideals which the Olympic Games were based on in ancient times? Is it possible to separate sport and politics in the modern world?

Olympic Principles

The ancient Olympics began as a religious celebration in honor of the ancient Greek god Zeus. All freeborn male citizens of Greece could participate. The modern Olympics no longer maintain religious significance and are based on modern ideas and principles.

The principles of Olympism are enshrined in the Olympic Charter under “Fundamental Principles of Olympism”. The first paragraph of the Charter reads: “Olympism is a philosophy of life, exalting and combining in a balanced whole the qualities of body, will and mind. Blending sport with culture and education, Olympism seeks to create a way of life based on the joy of effort, the educational value of good example, social responsibility and respect for universal fundamental ethical principles.” Thus, it should seem obvious that Olympism is centered on a human, his/her body, will, and mind. Nations are not mentioned at all in this section. On the contrary, “sports organizations within the Olympic Movement shall apply political neutrality.”

Moreover, the Olympic Charter enshrines the practice of sport as an inherent human right: “Every individual must have the possibility of practicing sport, without discrimination of any kind and in the Olympic spirit, which requires mutual understanding with a spirit of friendship, solidarity and fair play.”  Paragraph 6 continues with “The enjoyment of the rights and freedoms outlined in this Olympic Charter shall be secured without discrimination of any kind, such as race, color, sex, sexual orientation, religion, political or other opinion, national or social origin, property, birth or other status.”

Based on the above, we can conclude that anyone has the right to participate in competitions covered directly or indirectly by the Olympic Charter, and no one person or entity can be deprived of this right. The only limitation on participation is an individual athlete’s qualification and eligibility.  

Entering by NOC

The Olympic Charter Rule 40 provides that “the competitor, team official or other team personnel must be entered by his NOC” to participate in the Olympic Games.

Rule 41 and its By-law deal with cases where there are issues with the nationality of an athlete, such as a change of nationality, a change in the status of the territory on which an athlete resides, etc., but clearly states that, as a general rule, an athlete shall be a national of the NOC that is selecting him/her.

In previous years, the IOC allowed so-called independent athletes to participate in the Olympic Games (such teams had different names but the same status). In 1992 they were athletes from Macedonia and Yugoslavia, in 2000 from East Timor, in 2012 athletes from the Netherlands Antilles and South Sudan, in 2014 from India, in 2016 from Kuwait and Russia, and in 2018 from Russia. These athletes competed as independent/neutral athletes for various reasons, such as the absence of the NOC, the suspension of the NOC from the IOC, doping scandals, or international sanctions.

The increased role of the State that is expressed by the appearance of the national symbols on the athletes' uniform, the playing of national anthems, and the flying of the national flag at the award ceremony has given rise to an unofficial medal count, which now - whether the IOC wants it or not - plays an extremely important role at each Olympic Games. Spectators intensely monitor which country is leading the medal count - sometimes even more than the competition itself. More and more countries are competing against each other, drawing up medal plans in an attempt to prove that their training system is the best and the most progressive, which, in turn, shows the superiority of their political and/or financial system. This all takes the spectators’ attention away from the purity of revelling in the capabilities of the human body and spirit and admiring the achievements of athletes.

Such an approach to the formation of Olympic teams (at least in individual sports) does not comply with the principle enshrined in Rule 6 of the Olympic Charter “the Olympic Games are competitions between athletes in individual or team events and not between countries..” and it seems that it is unfair for several reasons.

First, while for most athletes the very opportunity to represent their country at the most important sporting event is a source of great pride, for other athletes, it is not. For example,  refugees who have fled their homeland, for fear of torture and/or death. For them, it is unacceptable to compete under the flag of their country. Their “national” NOC could not enter them in any event. To circumvent this problem, the IOC created a team of 10 refugee athletes who competed under the IOC flag and anthem for the first time at the Rio de Janeiro 2016 Olympic Games. In 2018, at the 133rd session of the IOC in Buenos Aires, it was confirmed that the Tokyo Olympics will also feature a refugee team. However, refugees are not the only group of athletes who have difficult relations with the authorities and/or political regimes. There are many places in the world where people are struggling for independence or with repressive regimes. For these athletes to compete under the national symbols used by such authorities is fundamentally and morally impossible because it contradicts their political views (for example, some of the Kurds may not be happy to represent Turkey, some of the Basques may be happy to see any flag but not a Spanish one, some individuals residing in Northern Ireland may feel themselves hurt and unhappy to compete under the Union Jack, the flag of the United Kingdom, Tibetans and Uighurs hardly want to glorify the flag of China that suppresses any attempts to show their national identity, etc.).

Second, despite the requirement of the Olympic Charter to observe political neutrality by NOCs, in reality, this is not always respected. A vivid example is a current situation in Belarus, where until February 2021 the NOC was headed by President Aleksandr Lukashenko, after whose election mass protests broke out in the country resulting in numerous human rights violations. Since February 2021, the NOC has been headed by his son, Viktor Lukashenko. Athletes who took part in the protests were persecuted and sometimes even imprisoned. It is obvious that such athletes have no chance to be selected by the NOC for the Tokyo Olympics and even if they were to be entered, they would unlikely be proud to perform under the symbols of a regime that they consider illegitimate.

The two examples demonstrate that performing under a national flag can sometimes have grave significance. Athlete can either be completely barred from competing in the Olympics should they not hold the correct political allegiance, or be forced to compete under a national flag that does not reflect their political views.

The author considers that a solution to the abovementioned problem consists in the registration of an athlete, if he/she meets sports criteria for participation in the Olympic Games, directly by the IOC in the personal capacity. Each athlete will then be able to independently decide to use the national symbols that correspond to his political views, or to refuse to use any symbols in general. This approach is consistent with the abovementioned principles.

Conclusion

The Olympic Games have evolved enormously from local games as part of a religious celebration to a worldwide sports festival watched by millions of people. The Olympics are the epitome of international competition between athletes and between nations. Political controversy and scandals surrounding the Olympics often overshadow athletes' successes. To remove the political underlying basis of the Olympics, the approach of entering athletes by the NOCs should be abandoned, and athletes (at least in individual sports) should be allowed to compete in a personal capacity stripping away political connotations that ought to be extraneous to sports competitions. 

[1] Intercalated Games were supposed to be a series of international competitions held in Athens halfway between Summer Olympic Games. The only such games were held in 1906.

Introduction: The new WADA Code 2015
Day 1: The impact of the revised World Anti-Doping Code on the work of National Anti-Doping Agencies
Day 2: The “Athlete Patient” and the 2015 World Anti-Doping Code: Competing Under Medical Treatment
Day 3: Proof of intent (or lack thereof) under the 2015 World Anti-Doping Code

Editor's note
Mike Morgan is the founding partner of Morgan Sports Law LLP. His practice is focused exclusively on the sports sector. He advises on regulatory and disciplinary issues and has particular experience advising on doping and corruption disputes.

Mike acted on behalf of National Olympic Committees at three of the last four Olympic Games and has represented other sports bodies, clubs and high profile athletes in proceedings before the High Court, the FIFA Dispute Resolution Chamber, the American Arbitration Association and the Court of Arbitration for Sport.

I. Introduction

According to the World Anti-Doping Agency (“WADA”), the 2015 World Anti-Doping Agency Code (the “2015 Code”), which came into effect on 1 January 2015,  is a “stronger, more robust tool that will protect the rights of the clean athletes”[1]. Among the key themes of the revised Code, is the promise of “longer periods of Ineligibility for real cheats, and more flexibility in sanctioning in other specific circumstances”[2].

While Article 10 of the 2015 Code unquestionably provides for longer periods of ineligibility, the validity of WADA’s claim that the harsher sanctions will be reserved for “real cheats” depends partly on how one defines the term “real cheat”, and partly on how the 2015 Code’s mechanisms for reducing sanctions are to be interpreted.

This blog reflects on the totality of the context from which the current sanctions regime arose.  That is important because Article 10 will have to be applied in a manner consistent with that context in mind if the 2015 Code is to become the tool promised by WADA and if it is to avoid the scrutiny of the courts.

II. Context

A.   Katrin Krabbe

In the lead up to the adoption of the first version of the WADA Code (the “2003 Code”), there was considerable debate as to what length of sanction could lawfully be imposed on an athlete for a first violation[3].

The decision finally to settle on a two-year ban for first offences was heavily influenced by the findings of the Munich Courts in the case of Katrin Krabbe, that a suspension exceeding two years was disproportionate[4]:

(a)           The Regional Court held that a two-year suspension imposed on an athlete for a first offence “represents the highest threshold admissible under fundamental rights and democratic principles”.[5]

(b)           The High Regional Court held that the three-year ban imposed by the IAAF “was excessive in respect of its objective. Such a rigid disciplinary measure as a sanction for a first sports offence is inappropriate and disproportionate”.[6]

And so it came to pass that a first violation under Article 10.2 of the 2003 Code would be punished with a two-year sanction. Various legal opinions procured by WADA between 2003 and 2008 affirmed the position that a two-year sanction for a first violation (1) was a significant incursion on the rights of the individual affected; and (2) was likely the limit of the severity that could be imposed in the absence of aggravating circumstances[7].

B.   Specified Substances

The 2003 Code proved somewhat inflexible, which resulted in two-year bans for unintentional and minor anti-doping rule violations. One of the starkest examples of that inflexibility arose in CAS OG 04/003 Torri Edwards v IAAF & USATF.

Edwards had consumed glucose powder that, unbeknownst to her, contained the stimulant nikethamide. A two-year ban was imposed on her on the basis that she could not meet the thresholds for “No Fault” and “No Significant Fault” and despite the fact that she had, in the words of the CAS panel, “conducted herself with honesty, integrity and character, and that she has not sought to gain any improper advantage or to ‘cheat’ in any way”[8].

Ms Edwards’ case became a cause célèbre, leading the IAAF to lobby WADA to have nikethamide and other similar stimulants reclassified as Specified Substances. The then vice-president of the IAAF, Dr Arne Lungqvist explained as follows:

I asked Torri Edwards whether she would allow me to use her case as an example of the importance of making some sort of differentiation between those weak stimulants that you can get over the counter by accident, carelessness, negligence or whatever.  We are not after those who are negligent.

WADA acceded to the IAAF’s lobbying and downgraded nikethamide to the Specified Substance list in September 2005. The IAAF Council shortly thereafter reinstated Edwards to competition further to the doctrine of lex mitior. Following Edwards’ reinstatement, Dr Lungqvist explained as follows:

The IAAF wishes to see strong penalties for real cheats. This was a different case, […]  I did not feel comfortable when I had to defend the then-existing rules against her at the CAS hearing in Athens.

I judge that Torri has paid a high price for having inadvertently taken a particular substance at the 'wrong' time, shortly before [the reclassification] and from now on such an intake would result in a warning only. (Emphasis added)

Four years later, WADA went one step further and, with the introduction of the 2009 version of the WADA Code (the “2009 Code”), broadened the list of substances that would be categorised as Specified Substances, promising “lessened sanctions….where the athlete can establish that the substance involved was not intended to enhance performance” under Article 10.4[10].  

The aim was to avoid the likes of the Edwards case. Indeed, a number of cases determined under the 2009 Code which involved the same glucose brand that had landed Edwards with a two-year ban in 2004, resulted in periods of ineligibility ranging between 0 – 6 months[11].

C.   The rise and fall of “aggravating circumstances”

The primary themes of the 2009 Code were, according to WADA, “firmness and fairness”. “Fairness” was to be reflected by the broadening of the Specified Substance list, while “firmness” was intended to manifest itself through the concept of “aggravating circumstances” [12].  

The presence of “aggravated circumstances” permitted Anti-Doping Organizations (“ADOs”) to increase periods of ineligibility beyond the standard two-year ban up to a maximum of four years[13].

A legal opinion commissioned by WADA in relation to the “aggravated circumstances” provisions (the “Third WADA Legal Opinion”) noted as follows[14]:

91. […] it is clear that the intention to enhance performance is not in and-of-itself an aggravating circumstance.

92. […] This provision makes it clear that cheating is an important element of the notion of aggravating circumstances. However, the mere fact of cheating alone is not sufficient. Additional elements are required.

93. The essence of the concept of aggravating circumstances is thus a qualified kind of cheating, which involves an additional element. (Emphasis added)

Not only, therefore, was actual cheating required to invoke the provision but there needed to be something more than the mere fact of cheating. Examples provided by the 2009 Code included being part of a doping scheme or using multiple prohibited substances[15]. 

The “aggravated circumstances” provision was rarely invoked and, when it was, it rarely resulted in the maximum increase[16]. That ultimately led to the removal of the “aggravated circumstances” provision from the 2015 Code and the introduction of standard four-year sanctions, explained as follows by WADA[17]:

There was a strong consensus among stakeholders, and in particular, Athletes, that intentional cheaters should be Ineligible for a period of four years.  Under the current Code, there is the opportunity for a four-year period of Ineligibility for an Adverse Analytical Finding if the Anti-Doping Organization can show “Aggravating Circumstances.” However, in the more than four years since that provision has been part of the Code, it has been rarely used. (Emphasis added)

The decision to double the standard two-year sanctions to four years may have surprised anyone who had ever read the Third WADA Legal Opinion, since that opinion had expressly cautioned as follows:

138. […] one should bear in mind that a four-year ban would most often put an end to an athlete’s (high level) career and thus be tantamount to a life ban. Therefore, an aggravated first offence could de facto be punished as harshly as numerous second offences (Article 10.7.1) and almost all third offences (Article 10.7.3).

139. This could raise problems if the ineligibility period were automatically of four years in the presence of aggravating circumstances. In reality, Art. 10.6 provides for an increased suspension of up to four years, which means that the adjudicating body is afforded sufficient flexibility to take into account all the circumstances to ensure that aggravating circumstances do not systematically result in a four-year period of ineligibility. (Emphasis added)

D.   Proportionality

The principle of proportionality plays an important role in the determination of sanctions applicable in doping matters. The principle pervades Swiss law[18], EU law[19] and general principles of (sports) law[20].  

The CAS itself has consistently measured sanctions imposed on athletes against the principle of proportionality both before the inception of the WADA Code and since.

(a)           Pre-WADA Code: the anti-doping rules of many sports prior to the creation of the WADA Code mandated fixed sanctions without the possibility of reductions. The CAS nevertheless sometimes reduced these sanctions on the basis they were not proportionate.[21]

(b)           Post-WADA Code: The WADA Code introduced mechanisms by which sanctions could be reduced or eliminated.  However, the CAS has made clear that the introduction of these mechanisms does not remove the obligation of disciplinary panels to measure the sanctions applied in any particular case against the principle of proportionality. In CAS 2005/A/830 Squizzato v. FINA, the CAS held that:

10.24 […] the Panel holds that the mere adoption of the WADA Code […] by a respective Federation does not force the conclusion that there is no other possibility for greater or less reduction a sanction than allowed by DC 10.5. The mere fact that regulations of a sport federation derive from the World Anti-Doping Code does not change the nature of these rules. They are still – like before – regulations of an association which cannot (directly or indirectly) replace fundamental and general legal principles like the doctrine of proportionality a priori for every thinkable case.

Though the 2015 Code asserts that it “has been drafted giving consideration to the principles of proportionality and human rights”[22], that obviously does not mean that proportionality no longer plays a part in the assessment of sanctions for the same reasons propounded by the CAS in Squizzato. Indeed, the 2015 Code itself recognises that it “is intended to be applied in a manner which respects the principles of proportionality and human rights”[23]. Moreover, the most recent CAS decisions in which the principle of proportionality was applied concerned the sanctioning regimes of the 2003 and 2009 Code, both of which mandated default sanctions of two years, not four years[24].  The principle of proportionality is, therefore, arguably even more relevant now than it previously was.

III. Comment

While the 2015 Code does have more mechanisms by which to modify the default sanctions than in previous versions of the WADA Code, that is partly because the default sanctions with regards to most of the violations have doubled[25]:

Athletes accused of committing a violation under Articles 2.1, 2.2, 2.3 or 2.6 are now in a position in which they are required to meet the Article 10.2 thresholds regarding “intent” simply to get them back to the two-year default sanctions that would have applied under previous versions of the Code[26].

If the 2015 Code is to become the tool promised by WADA and if it is to avoid or survive legal challenges, tribunals will need to ensure that their interpretations of the reduction mechanisms, such as those contained at Article 10.2, do not result in disproportionate sanctions.

The parameters within which the proportionality of a sanction falls to be measured were described as follows by the panel in CAS 2005/C/976 & 986 FIFA & WADA:

139. A long series of CAS decisions have developed the principle of proportionality in sport cases. This principle provides that the severity of a sanction must be proportionate to the offense committed. To be proportionate, the sanction must not exceed that which is reasonably required in the search of the justifiable aim. (Emphasis added)

The evaluation of whether a sanction is proportionate therefore begins with the identification of the “justifiable aim”. According to WADA, the increased sanctions were intended to target “intentional cheats”. That is echoed by the wording of Article 10.2.3 of the 2015 Code, which provides as follows:  

As used in Articles 10.2 and 10.3, the term “intentional” is meant to identify those Athletes who cheat. The term, therefore, requires that the athlete or other Person engaged in conduct which he or she knew constituted an anti-doping rule violation or knew that there was a significant risk that the conduct might constitute or result in an anti-doping rule violation and manifestly disregarded that risk [….] (Emphasis added)

The final sentence emphasised above is, arguably, open to interpretation.  However, the first line identifies the overarching aim of the provision – i.e. “the term ‘intentional’ is meant to identify those athletes who cheat”.

According to the Oxford Dictionary, a “cheat” is a “person who behaves dishonestly in order to gain an advantage” and the act of “cheating” amounts to “a fraud or deception”.  A reasonable inference, therefore, is that athletes who “cheat” are athletes who have acted knowingly and dishonestly to gain an unfair advantage.

Article 10.2 cannot, therefore, be intended to punish careless athletes.  Bearing in mind the limits pronounced by the courts in Krabbe and bearing in mind the “justifiable aim”, any interpretation of the provision that would result in a four-year ban for nothing more than careless – or even reckless, but otherwise honest - conduct would risk inviting the sort of scrutiny exercised by the German courts in the Pechstein[27] and Krabbe cases.

Likewise, the interpretation of the other reduction mechanisms, such as Article 10.5 (“No Significant Fault or Negligence”), will require the same degree of pragmatism.  If the parameters for “No Significant Fault” were to be applied as strictly today as they were in the Edwards case, anti-doping would end up right back to where it was in 2004, when the Code’s sanctioning regime was perceived to be so inflexible that it had to be overhauled in 2009. Assuming that the aim of the 2015 Code is not to take 11 years’ worth of backward steps, tribunals will have to ensure that “No Significant Fault” is interpreted in a manner that fulfils WADA’s promise of “greater flexibility”, particularly in cases involving Specified Substances and Contaminated Products[28].

IV. Concluding Remark

The 2015 Code has the potential to become the fairest WADA Code to date. However, it also has the potential to be the cruelest. Interpreting it in a manner consistent with the totality of the context from which it was conceived is the surest way to ensure that the right version prevails.

[1] https://www.wada-ama.org/en/what-we-do/the-code

[2] https://wada-main-prod.s3.amazonaws.com/wadc-2015-draft-version-4.0-significant-changes-to-2009-en.pdf

[3] See (1) http://library.la84.org/OlympicInformationCenter/OlympicReview/1999/OREXXVI26/OREXXVI26s.pdf; and (2) http://library.la84.org/OlympicInformationCenter/OlympicReview/1999/OREXXVI26/OREXXVI26t.pdf

[4] See Kaufmann-Kohler, G., Rigozzi, A., and Malinverni, G., “Doping and fundamental rights of athletes: comments in the wake of the adoption of the World Anti-Doping Code”, I.S.L.R. 2003, 3(Aug), 39–67 *61

[5] Krabbe v. IAAF et. al., Decision of the LG Munich of 17 May 1995, SpuRt 1995 p. 161, p. 167

[6] Krabbe v. IAAF et. al., Decision of the OLG Munich of 28 March 1996, SpuRt 1996 p. 133, 138

[7] See (1) Legal Opinion on the Conformity of Certain Provisions of the Draft World Anti-Doping Code with Commonly Accepted Principles of International Law, dated 23 February 2003, paragraphs 142 and 143; (2) Legal Opinion on whether Article 10.2 of the World Anti-Doping Code is compatible with the Fundamental Principles of Swiss Domestic Law, dated 25 October 2005, paragraph 3 (b) (aa) at page 26 and paragraph 3. (f) (aa) at page 32; and (3) Legal Opinion on the Conformity of Article 10.6 of the 2007 Draft World Anti-Doping Code with the Fundamental Rights of Athletes, dated 13 November 2007, at paragraphs 33, 114, 138 and 139

[8] See paragraph 5.8 of CAS OG 04/003 Torri Edwards v IAAF & USATF

[9] See IAAF press release dated 22 November 2005

[10] 2009 Code, Article 10.4 (“Elimination or Reduction of the Period of Ineligibility for Specified Substances under Specific Circumstances”)

[11] See (1) CAS 2011/A/2493 Antidoping Switzerland v/ X; (2) CAS 2013/A/3327 Marin Cilic v. International Tennis Federation & CAS 2013/A/3335 International Tennis Federation v. Marin Cilic; (3) AFLD Decision No. 2011-71 dated 7 July 2011; (4) AFLD Decision No. 2009-50 dated 10 December 2009

[12] Article 10.6 of the 2009 WADA Code (Aggravating Circumstances Which May Increase the Period of Ineligibility)

[13] Note that Violations under Articles 2.7 (Trafficking) and 2.8 (Administration) were not subject to the application of Article 10.6 since the sanctions for those violations (four years to life) already allowed discretion for aggravating circumstances

[14] Legal Opinion on the Conformity of Article 10.6 of the 2007 Draft World Anti-Doping Code with the Fundamental Rights of Athletes, dated 13 November 2007

[15] See commentary to Article 10.6 of the 2009 Code

[16] See CAS 2013/A/3080 Alemitu Bekele Degfa v. TAF and lAAF for a detailed assessment by the CAS of the “aggravated circumstances” provision

[17] WADA, Significant Changes between the 2009 Code and the 2015 Code, Version 4.0, 1 September 2013

[18] See paragraph 124 of CAS 2005/C/976 & 986 FIFA & WADA

[19] See paragraphs 47 and 48 of Case C-519/04 P Meca-Medina & Majcen v Commission [2006] ECR I-6991

[20] See paragraph 83 of the First WADA Legal Opinion

[21] See (1) CAS 1996/56 Foschi v. FINA; (2) CAS 2002/A/396 Baxter v. FIS; (3) CAS 2001/A/337 B. / FINA

[22] See page 11 of the 2015 Code - “Purpose, Scope and Organization of the World Anti-Doping Program and the Code”

[23] See the Introduction at page 17 of the 2015 Code

[24] See, for instance (1) CAS 2010/A/2268 I. v. FIA; and (2) TAS 2007/A/1252 FINA c. O. Mellouli & FTN

[25] Note that the table only reflects the default sanctions applicable before consideration of any of the mechanisms intended to increase or decrease those sanctions

[26] Note that article 10.2 only applies to those violations. For a detailed assessment of Article 10.2, see Rigozzi, Antonio and Haas, Ulrich and Wisnosky, Emily and Viret, Marjolaine, Breaking Down the Process for Determining a Basic Sanction Under the 2015 World Anti-Doping Code (June 10, 2015). ISLJ, (2015) 15:3-48

[27] See (1) Landesgericht (LG) München, 26. February 2014, 37 O 28331/12; and (2) Oberlandesgericht (OLG) München, 15 January 2015, Az. U 1110/14 Kart

[28] Notably, the concept of “No Significant Fault or Negligence” in previous versions of the Code was limited to ‘‘exceptional circumstances’’. That limitation has been removed in the context of Specified Substances and Contaminated Products under Article 10.5.1 of the 2015 Code. Thus, it should now be easier for athletes to trigger the application of “No Significant Fault” in those types of cases than it previously was. See Section 6.2 of Rigozzi et al for a detailed discussion of the point