French Organizational Economist
Format: Notes 🗒️
CNES, the French space agency, shared on Bluesky a spectacular picture of the Taj Mahal taken by one of the two Pleiades satellites. Le Taj Mahal en Inde, observé par un satellite Pléiades à près de 700 km d'altitude ! Ce mausolée de marbre blanc est considéré comme un
Format: Notes 🗒️
Sensor Tower released data on the number of daily active users on the mobile application of X, formerly Twitter. The data shows that in the United States, the number of daily active users on the mobile application has decreased by almost 25% since Elon Musk acquired the platform. Worldwide, Sensor
Format: Notes 🗒️
As shown in Figure 1, Gatun Lake is a key component of the Panama Canal. However, as shown in Figure 2, the water level in Gatun Lake is at a historically low level. In fact, this is the lowest level measured since 1965. The cause is a significant drought in
Format: Notes 🗒️
I have found this interesting plot in a recent article by Laura Laker on Bloomberg: Figure 1 shows that since the 2000s, the number of trips per day by bike in London has multiplied by 4. From about 300,000 trips in 2000, there are now between 1.1 and
Format: Quiz 🔍
Embark in a five-questions long journey to discover macroeconomics
Format: Announcements 📢
I have started a weekly science communication column at France Bleu Sud Lorraine, a French local public service radio
Format: Notes 🗒️
Anyone who still uses X has experienced it: the platform is overwhelmed by inauthentic actors — namely, bots. Who hasn’t had a deluge of “Hannah” in their notifications for the last few months? However, personal anecdotes are not enough to show that X has a generalized problem of inauthentic activity.
Format: Notes 🗒️
After almost a year in closed beta, the social network Bluesky is now accessible to everyone. You no longer need an invite code to create an account. If you don’t already have an account on Bluesky, creating one is simple: just go to bsky.app and follow the instructions.
Format: Notes 🗒️
During the COVID-19 pandemic, many schools switched to remote instruction. What effects did the switch to remote instruction have on the mental health of students? This question is not a matter of opinion, but a matter of facts. The effects of the switch to remote instruction are not a matter
Format: Announcements 📢
Dear R enthusiast, I am delighted to announce that I opened new sessions for my two-day long online workshop Getting started with R for busy people. As usual, they run in Paris time and in Eastern time. As an experiment, I opened a lot more sessions than usual. Until now,
Format: Notes 🗒️
404 Media is running an interesting new policy
Format: Code Snippets 🔖
Discover details of built-in data sets with R