La Nacion Data’s team portfolio from Buenos Aires, Argentina 2019

La Nación Data is the data journalism unit from LA NACION in Argentina. We do Open Data Journalism for change, in order to better serve our audiences using data to discover and tell stories. We promote the use of open data and access to information in Argentina as evidence to keep governments accountable, enhance transparency and allow citizen´s collaboration in the process of journalism.

Much of our work and effort is invested in building datasets from scratch, cleaning, structuring and normalizing to make them accessible for our newsroom and our users in Argentina. But our objective is also to produce long-term investigations that encompass a multiplicity of topics of interest with the intention of producing a political and social impact. Here is a selection of this year´s work and strategy:  Seguir leyendo

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LA NACION´s Shopping Cart. Monitoring 2600 supermarkets and 170 product prices

LA NACION´s SHOPPING CART: monitoring 2600 supermarkets in 170 product prices


In March 2018, Argentina was one of the five countries with highest inflation according to the International Monetary Fund. The index climbed up to 47.6% anually according to official numbers. The jump of the exchange rate, higher than 100% also had an impact on the rise of prices on the supermarkets every week.

Given the country’s inflationary context, there are several sources of information about price variation, but these end-user reports are abstract numbers that do not reflect their daily reality and do not represent the real impact on their economy.

To understand how supermarket product prices evolve independently of the official measurements monthly informed, and to bring this measurement closer to the daily economy of the audience, we created “Changuito LA NACION“  (LA NACION Shopping Cart), a price monitor that allows a weekly and monthly monitoring of goods product by product such as noodles, soft drinks and liquors and toothpaste, among others. Its name refers to the colloquial way of naming the shopping cart.

The premise is to make price variation -an abstract subject that impacts on every household in an inflationary context- more contained in terms of everyday aspects and give control to end users . According to the study made in March of this year by D’Alessio IROL/Berensztein, inflation is the first concern of Argentine citizens, followed by uncertainty about economic situation and insecurity.  Seguir leyendo

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FIFA World Cup Russia 2018

On the occasion of the 2018 FIFA World Cup in Russia, a complete coverage was planned. The production had to demonstrate the highest standards of journalism in an interactive and digital design. The objective was to inform and engage the audience in  two different stages:

The first stage consisted of a series of playful and social visualizations prior to the beginning of the World Cup. The articles were strategically conceived according to the schedule prior to the event: selection of the 23 players that were going to travel to Russia, the 11 players that were going to play on the first match,  a draw simulator of the different possible groups in which each country soccer team could be selected and their possible opposing team, and a result forecast for the people to play with and bet.

Instead, the second stage was focused on the real time results and matches: a fixture with the times, teams and matches, a calculator for the audience to estimate results and evaluate the possibility of passing to the next round, a game that allows the audience to score the players after each match, a live statistics visualisations of the amount of shoots and passes between players and their positions on the field throughout the game, the possibility to vote for the best goal of the world cup and a monitor of the speed and the distance runned by each player.

Russia 2018

Visualizations published before the Soccer World Cup


Days before the event and with the purpose of informing the methodology of the draw, an interactive was made that simulated the possible combinations that could result from the draw and thus allow the user to speculate with which teams could face the Argentine football team.



The day the coach of the Argentine football team informed the previous list of 35 players of which only 23 would be included in the final list, an interactive development allowed the reader to choose his/her 23 favorite players for the football team. With the data provided by the users, a ranking was formed in real time with the most and least chosen players. During the day the app was active, it obtained 113,340 unique users and an estimated time of 4.22 minutes.  Seguir leyendo

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Driver’s notebooks exposed Argentina’s greatest corruption scandal ever: ten years and millions of cash bribes in bags



This investigation was published on august 2018 after 7 months of secrecy. So far, 73 individuals have been prosecuted including a former President, 40 have been imprisoned, other 40 already confessed their crimes and are waiting for oral judging and US$ 600 million had been seized.

More than 200 newspapers from the all over the world covered the news that broke in LA NACION, globally known as “The notebooks of bribes” (“Los cuadernos de las coimas”).

On january 2018, Diego Cabot, an investigative journalist from La Nación, was contacted by one of his sources. At the meeting, he was given eight notebooks that have been written by the driver of Roberto Baratta, the Secretary of Energy, an officer of the former Federal Planning Agency that included Energy, Transportation and Infrastructure. The Minister in charge was Julio De Vido, one of the most important officers during the 12 years of the Kirchner administration (from 2003 to 2015).

The notebooks contained a detailed record of each one of the routes the driver made for 10 years, taking Roberto Baratta and other officers to collect money in bags of cash representing bribes of several large companies of Argentina that have been awarded with public contracts.

From the beginning of the investigation, Diego Cabot, who has been a pioneer in data journalism since 2011, and a small team who accompanied him in the whole process, made two fundamental decisions. First, given the number of state officers and important businessmen involved, they decided not to publish anything until they could prove and verify most of the facts, No person, except for the team members and LA NACION´s Managing editor, knew anything about the investigation that was being carried out.


Second key decision: build a dataset from this handwritten notebooks. The 8 notebooks were transcribed to an Excel database. The team began working on each one of the records with all the objective elements that could be verified. The following columns were listed:

- Names and positions

- Adresses and destination of the routes

- Data from car plates

- Name of companies

- Places for the delivery

- Personal information of the individuals identified at the moment a bribe was paid.

- Amount of each one of the bribes

During the checking and verification process they consulted:

- Official gazette datasets and company records

- A large number of addresses using google maps

- The corporate information of the companies involved was gathered

- The amounts paid were compared to the Government accounting details

- The payment of bribes were cross checked with the information related to tenders and public contracts and the percentage of execution of each one to verify any relation to the amounts of money from bribes.

After checking and knowing that the whole matter was true, the team understood that they were working with the biggest corruption scheme ever revealed in Argentina. 

The content of this corruption scheme was formalized in a document and in March 2018, the journalist began a formal negotiation with a Federal Prosecutor (Carlos Stornelli). On April 10, a formal complaint was filed before justice.

There was a commitment between the Prosecutor’s office, the federal court and LA NACION: nobody could know anything about the cause and silence had to be absolute. “If the investigation was leaked, it would have been very dangerous and risky,” said the Prosecutor of the case some months later.

On the early morning of August 1st, seven months after Diego Cabot received the evidence, the case became known to the public and the Justice ordered 17 arrests and 36 search warrants.


The title of the case file had the name of the former President of the Nation: “Fernandez Cristina Elizabet and others for illicit association” (9608/2018). The Judge considered that the data provided proved the existence of a criminal organization made up of public officers who, using official means (including automobiles, employees, cell phone equipment, etc.) and commanded by the heads of the National Executive Branch (Néstor Carlos Kirchner and Cristina Elisabet Fernández) and the Federal Planning Ministry (Julio Miguel De Vido), between 2003 and 2015, obtained illegitimate amounts of money from several individuals, many of them businessmen who were contractors of public spending for infrastructure from the national government.

That same day, the Data team in LA NACION decided to compile all the spreadsheets that they had been previously worked on to deepen the analysis and processing of the notebook records. First, a check was made on the transcripts to verify that the amounts described, the individuals, the place of origin and destination that appeared handwritten in the notebooks were correct. This verification process was used to carry out a strict process of standardization and structuring of data in which currency and descriptions were unified and names and addresses were normalized. The exact date and time of the routes were also added.

On the other hand, a methodology was applied to classify each route, which was divided according to: a) if the bag of money was delivered to the head of the criminal bribery plan; b) whether it consisted of collecting the money given by the companies as a bribe. In addition, a series of tags were included to identify the relevance of each record.


Based on the classification, we created several dictionaries of equivalences because the notebooks contained various terms for the same concept. Example: “bag” = “suitcase” = “briefcase”. We did the same with personal names and addresses.

All the journalistic investigation work was accompanied by various applications and exclusive visualizations that allowed the user to browse in a digital and interactive way all the notebooks and current news on the subject. This included the full text searchable notebooks and the grouped by brives destiny visualizations . 



So far, 73 individuals have been prosecuted (40 have been imprisoned and several continue and another 90 businessmen are waiting for prosecution), including a former President, the entire office of the Ministry of Planning and the main public works contractors of the country. About 40 persons repented and confessed their crimes. US$ 600 million were seized.

Researchers from CONICET (a group of State scientists) calculated that the bribe money paid during those years of corruption was US$ 38,000 million.

More than 200 newspapers from the all over the world covered the news which was globally known as “The notebooks of bribes” (“Los cuadernos de las coimas”).

 The case file accumulated 35 bodies of proceedings in federal court in one month, in addition to voluminous documents and annexes. There were 70 search warrants, 36 in the City of Buenos Aires, 24 in the Province of Buenos Aires, 7 in Misiones, 2 in Santa Cruz and 1 in Mendoza. Moreover, the Senate considered the request of the Judge to search the private addresses of former President Cristina Kirchner, currently a Senator and holder of Parliamentary privileges and immunities. The vote in the legislative body ended 66 votes in favor and none against and the procedure was authorized.

More than two hundred and fifty (250) paintings were seized in possession of two accused for approximately thirty-seven million pesos ($37,000,000) and four million five hundred thousand pesos ($4,500,000). In addition, as a consequence of this, more than six million three hundred and fifty thousand pesos ($6,350,000), more than one million two hundred and forty-five thousand US Dollars (U$S 1,245,000), and two hundred and thirty-five thousand Euros (€ 235,000.00) were seized, as well as other currency: Chilean and Uruguayan Pesos and Brazilian Real, nine (9) firearms, mobile and electronic telephone equipment and finally, a large number of cars of different brands and models, many of them luxury cars.


Repercussion in the international press

- Bags of Cash in Argentina: Driver’s Notes Propel Corruption Inquiry – The New York Times

 Argentina notebook scandal: Driver details ‘decade of brives’ – BBC

Secret papers trigger argentine scandal: What you need to know – Bloomberg

Driver’s diaries of transporting bags of cash help Argentina score historic victory against corruption – Miami Herald

How a chauffeur could bring down Argentina’s political elite – Bloomberg


Diego Cabot and his team in LA NACION , thanks to their work in “The notebooks of brives” or “The notebooks of corruption” already won:

-The National Investigative Journalism Prize at the Argentinean Journalism Forum (FOPEA)

-The International Prize King of Spain (Rey de España)

-Society for News Design 

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