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Author of free range statistics, interested in data and analysis, focusing on making data accessible to a wide audience.

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Specializations:

Interests:

Economics Econometrics Complex surveys Time series Spatial statistics Text mining R Data visualisation Data warehousing Data governance Data analysis

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Mark Litwintschik
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The blog post discusses the distribution of p-values under the null hypothesis, challenging the common belief that they are uniformly distributed. The author explores this phenomenon through simulations comparing p-values from dif...
Alternative visualizations for income inequality are proposed, emphasizing scatter plots over traditional dual-axis charts, using historical data from Milanovic's work.
The blog post explores the relationship between income or consumption inequality and homicide rates across different countries. It highlights that while countries with higher inequality tend to have more homicides, the relationshi...
The post examines the relationship between the time men spend on domestic chores and total fertility rates, highlighting that this correlation is positive in wealthy countries but negative overall. It argues that the apparent rela...
An analysis of New Caledonia's nickel exports from 2008 to 2025, focusing on trends, global prices, and local political influences.
The post contrasts the population pyramids of Kiribati and the Marshall Islands, illustrating how migration affects their demographic structures and economic conditions.
The blog post discusses the disappearance of Amelia Earhart and Fred Noonan in 1937, focusing on key locations associated with their flight and the speculation surrounding their fate. The author expresses skepticism about the pote...
The blog post discusses economic and demographic statistics of Papua New Guinea (PNG), inspired by a recent book on the country's economic history. It highlights the decline in average living standards since independence, the chal...
This post serves as a technical companion to a previous article discussing men's domestic chores and fertility rates. It covers various technical aspects such as drawing directed graphs with ggdag, accessing the UN SDGs database A...
The post examines the Pacific diaspora, revealing that many Pacific nations have more citizens living abroad than at home, with significant implications for their demographics.
This blog post discusses net migration trends in Pacific island countries, utilizing data from the UN's 2024 population prospects. It presents two visualizations: the first shows net migration rates over time, highlighting a predo...
The blog post discusses the analysis and visualizations of population data in the Pacific, specifically focusing on recent and projected growth. It outlines the process of creating statistical charts using publicly available data ...
The blog 'Free Range Statistics' celebrates its tenth anniversary, highlighting the author's journey through 225 posts and 350,000 words. The author reflects on the motivations for blogging, which include personal learning, engage...
Pacific island nations exhibit significant economic reliance on remittances, with Tonga's dependency exceeding 40% of GDP, highlighting the importance of these financial flows.
Auckland is identified as the largest city of Pacific Islanders, with Port Moresby and several Indonesian cities following closely behind, despite challenges in data accuracy.
The author discusses the potential of Sankey plots and how they can be improved. They address the issues with the original graphic and present alternative versions of the plot. The post includes a critical discussion of Sankey plo...
The text discusses the concept of 'fragile' p-values and the impact of actual power differing from the minimum detectable difference. The author presents simulations comparing sampling strategies and actual differences between pop...
The article discusses the significance of 'fragile' p values in psychology literature and the replication crisis in science. It explores the proportion of p values between 0.01 and 0.05 and the impact of questionable research prac...
The text is a short blog post about producing an animation of demographic patterns in Pacific island countries and territories from 1950 to 2050. It discusses the process of downloading data from the Pacific Data Hub, formatting a...
The text provides a quick look at the latest World Economic Outlook released by the IMF, focusing on the economic growth forecasts for Pacific island countries. It compares the April 2025 World Economic Outlook to the edition that...
The text discusses the correlation between depression incidence in US counties and their vote for Trump in the 2024 presidential election. The author revisits the issue and discusses the methodological details of multilevel modeli...
The text discusses the relationship between the incidence of depression in 2020 and voting for Trump in the 2024 US Presidential election at the county level. The author concludes that counties with higher incidence of depression ...
The text explores death rates by cause of death with OECD data, focusing on the USA and other countries. It discusses the impact of low life expectancy in the USA, the causes of death that are relatively high in the USA, and the r...
The text is about simulating Ponzi schemes and the author's thoughts on the topic. The author writes a function to simulate Ponzi schemes with various types of 'investor' growth, withdrawal rates, and extraction by the scammer / o...