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John Steenhuisen during the swearing-in ceremony of the new national executive members at Cape Town International Convention Centre on July 03, 2024 in Cape Town, South Africa. Picture: MISHA JORDAAN
John Steenhuisen during the swearing-in ceremony of the new national executive members at Cape Town International Convention Centre on July 03, 2024 in Cape Town, South Africa. Picture: MISHA JORDAAN

We all know ANC activists who have noisily condemned the government of national unity (GNU). But DA supporters have more quietly, but equally vehemently, expressed discontent with the grand coalition.

Such scepticism is nothing new. A July 2022 Social Research Foundation poll suggested that two-thirds of ANC voters would “compromise party values ... for the sake of creating a stable coalition”. Only four out of 10 DA voters were happy to do so.

Making matters worse is a perception that the ANC has benefited most from the deal. The key evidence presented by DA critics is a lack of proportionality in the allocation of meaningful ministerial positions.

American social scientist William Gamson first suggested in 1961 that parties making coalition deals expect the “payoff” from the deal to be proportional to the “resources” they bring to it. A decade later, European political scientists recast this insight as “Gamson’s Law”: the key resource parties possess — the proportion of seats they hold in the legislature — will closely match the share of ministerial portfolios they secure.

There have not been many laws in political science, and the few that have emerged have eventually turned out to be wrong. It was therefore a happy surprise for proponents of Gamson’s Law that numerous empirical studies of coalition formation, in the years that followed, confirmed that parties reliably secured ministerial positions in proportion to the legislative seats they held.

The absence of this relationship in SA has been a key basis for DA member discontent. The parties in the GNU together hold 287 seats out of the total 400 in the national assembly. The new government includes 34 cabinet ministers and 38 deputy ministers.

The ANC secured 159 seats in the National Assembly, and this translated to 22 cabinet positions and 31 deputy ministerial positions. In percentage terms, 55% of GNU seats led to 65% of cabinet positions and 82% of deputy ministerial positions.

The DA secured 87 seats in parliament but was allocated only six cabinet posts and five deputy ministerial positions. A total of 30% of GNU seats brought just 18% of cabinet portfolios and 13% of deputy ministerial positions. Adding insult to injury, many DA activists believe the party has been deprived of the most powerful and prestigious portfolios, notably in foreign affairs and the economy cluster.

However, there are four considerations DA activists should bear in mind before they condemn their negotiating team. The first is that Gamson’s Law derives from the experiences of parliamentary systems in Western Europe. A landmark study published earlier in 2024 in European Political Science Review demonstrated that it “does not travel especially well” across constitutional types or parts of the world.

Second, the biggest cause of disproportion is deputy ministerial portfolios that are mostly packed with ANC hacks, but these ministers have strictly limited powers. And third, “payoff” must be understood negatively as well as positively. The DA has steered clear of “no-win” departments and “ministerial graveyards”. It has also minimised its exposure to potential coalition collapse by deploying mostly inconsequential leaders to the executive. Four of the six DA cabinet ministers — Siviwe Gwarube, Solly Malatsi, Leon Schreiber and Dean Macpherson — are political toddlers in their 30s.

Finally, payoff isn’t just about bums on seats round the cabinet table. Long-standing demands from the DA and the IFP for devolution of powers to provinces and metropolitan authorities are likely to materialise across several sectors. The broad principle of “sufficient consensus” set out in the GNU’s founding statement of intent meanwhile places an effective policy veto in DA hands.

Sceptical activists doubtless need persuading about the merits of the coalition deal. However, the payoffs from the GNU are not so unbalanced so as to bring any early DA rebellion against it.

• Butler teaches public policy at the University of Cape Town.

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