Answer:
Two social identities:
Catholics: are people who belong to the Catholic Church, the largest branch of Christianity with around 1.2 billion members.
Catholics are the largest religious denomination in many European countries like France, Italy, Spain, and Poland, and also in Latin American countries like Mexico and Brazil. The United States also has a very large Catholic population.
The leader of the Catholic church is the Pope, who lives in Rome, and who is considered to be the representation of apostle Peter on Earth, because Peter was the first pope.
Economists: economists are people who study and exercise in the field of economics in a professional manner. Economist is a relatively new profession, and economists can be found in both the public and the private sector. Economists are socially relevant because economic issues are of importance to every other profession.
Catholic signifiers: Catholics identify with the Catholic rite, known as the mass, with the belief in Virgin Mary and Saints, something that is opposed by protestants instead, with an all-male celibate clergy, meaning that Catholic priests cannot marry or bear children, and with a long-standing philosophical and cultural tradition due to having been the first Christian denomination.
Economists signifiers: economists identify with their shared corpus of knowledge, including central subjects such as microeconomics, macroeconomics, econometrics, economic history, and game theory. Economists also identify with central academic authorities like Adam Smith, John Maynard Keynes, and Friedrich Hayek. They also identify with their particular views on the economy: there are neoclassical, keynesian, marxian, austrian economists, who agree with each other in some aspects, and disagree with each other in other aspects.