Public finances and social justice – be careful not to make the wrong diagnosis

09.29.2024 3 min
Article published in l'Opinion, September 17, 2024 French public finances urgently need to be put back on a sustainable path. Should we increase compulsory taxes, reduce public spending or strengthen growth potential? What is the best combination? In France's specific situation, any combination will be far from being equally effective. And where, through an imprecise analysis, one might think that raising taxes could be useful for both public finances and social justice, we understand, with better economic reasoning based on better knowledge of the real situation and the figures, that this choice could lead to a deterioration in both public finances and social justice. We must not make the wrong diagnosis to make an appropriate and effective.

“It is in developing the employment rate, encouraging work, revaluing the value of work, social mobility, encouraging entrepreneurship, education (a decisive factor), innovation and growth that we must find solutions… And not through additional taxes on income from work or savings, any more than on businesses”

Correcting the poor trajectory of our public finances is a necessity that has become an urgent priority. To avoid a public debt crisis, ensure France’s independence and regain credibility, and therefore a real capacity for influence within the European Union. To this end, it is theoretically possible to increase taxes and social security contributions, reduce public spending and strengthen growth
through structural reforms and investments for the future. However, each of these measures, in the specific situation of France, will not produce the same effect and will not have the same effectiveness. Let us focus here on increasing taxes, which might seem, at first glance, to both reduce the public deficit and improve social justice. The reality is quite different. Increasing taxes in France could worsen the vicious circle between very high redistribution – in itself and compared to similar countries – and relatively high income inequality before redistribution. By again degrading the lack of competitiveness and the inadequacy of our offer and thus
reducing growth and ultimately damaging the standard of living of all and the tax base itself.

Lack of competitiveness. The rate of compulsory taxes has been on an upward trend in France for a long time, reaching more than 43% of GDP in 2023, one of the highest in the European Union with around 6 points more than the average for the eurozone. With a part of public spending that is inefficient (e.g the situation of hospitals, education, the redundancy of administrative operating costs, etc.) and also significantly higher than the European average – by around 8 to 10 points of GDP – and all this for a lesser result. This state of affairs contributes to the lack of competitiveness of our offer, which is currently the heart of the issue.

Furthermore, after redistribution, income inequality in France, measured by the ratio between the income of the wealthiest 10% and that of the least wealthy 10% or by the relative poverty rate, has not changed or has changed little for over 20 years. And is among the lowest in Europe. The Gini index of post-redistribution inequality stands at 0.298, while Germany reaches 0.303 and Spain, Italy and the United Kingdom have levels between 0.320 and 0.354. Let us also add that the share of national income after redistribution held by the wealthiest 1% in France is also one of the lowest at 7.17%, compared to 8.72% in Sweden, 10.32% in Italy or 14.35% in the United States. France in fact has one of the highest levels of redistribution in the OECD. Overall, in France, redistribution reduces the ratio between the income before redistribution of the wealthiest 10% and that of the least wealthy 10% from around 20 to 9. And this ratio increases to 3 by adding the effect of public services, by comparing for each the cost paid versus the monetary equivalent of what is received by using them. The wealthiest pay more, due to the high progressiveness of taxes. Thus, 85% of people among the poorest 30% receive more in terms of public services than they pay, compared to 57% for all people in France (INSEE study of 2023 on extended redistribution).

The marginal tax rate on household income is 55.2%, compared to 47.5% in Germany. It is higher than in Italy, Spain, the Netherlands or Belgium, for example. And the tax rate on capital income is still higher than the European average despite
recent reductions that have been very useful for the French economy, which has been well documented.

Ignoring this when building economic programs will obviously lead to inadequate and dangerous proposals for the economy and ultimately for the less well-off.

Inequality of opportunity. True social justice, given the reality in France, is to tackle inequality of opportunity, which is quite high compared to the European average. And it is in developing the employment rate, encouraging work, revaluing the value of work, social mobility, encouraging entrepreneurship, education (a decisive factor), innovation and growth that we must find solutions… And not through additional taxes on income from work or savings, any more than on businesses. Increasing redistribution further and further, at the particularly high level we are at, is making the problem worse, by leading to less competitiveness, therefore less production and less growth. The overall risk is very high of causing more inequality of income before redistribution and more inequality of opportunity.

And of not improving the sustainability of our public finances, or even of deteriorating it further. French history in recent decades bears witness to this nonvirtuous loop. The economy, like income, is in fact a dynamic, not a zero-sum game. Serious long term research has shown this unambiguously.

What remains is action in the gradual reduction of public spending (well chosen and well managed) in relation to GDP, as well as structural reforms and future investments to increase the competitiveness of our offer and our growth potential, and at the same time promote social justice and restore the sustainability of our public finances. And thus sustainably protect the precious asset that is the level of income and social protection in France.

Let’s not confuse effects and causes

Olivier Klein
CEO and Managing Partner of Lazard Frères Banque | Professor of Financial Macroeconomics and Monetary Policy at HEC