Workplace violence in the United States

Andrey Kamenov

Andrey Kamenov, Ph.D. Probability and Statistics

Workplace violence (intentional injury caused by a person) remains to be the second leading cause of work-related fatalities in the U.S. It accounts for around 10 percent of all work-related deaths each year (with another 4 to 5 percent being suicides).

The vast majority of these cases were shootings, which constituted 82 percent of all homicides (and 49 percent of all suicides).

Importantly, the number of homicides has fallen by a third since 2003. In 2017, 417 incidents were recorded. This is not much higher than the lowest number ever: 404 in 2013.

On the other hand, the number of suicides keeps growing (albeit rather slowly). Here, 2013 also stands out — but this time it’s because of the highest number (282 incidents).

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E-book market in the United States

Pavel Prikhodko, Ph.D. Machine Learning

The internet era elevated the process of reading books to a whole new level. Since text was adapted into an electronic document for the first time, many people have abandoned physical books. The forecast by PricewaterhouseCoopers suggests that the revenue of the e-book market in the United States will grow by $8.68 million in 2018. By the end of this year, e-book sales will generate about $7.5 million. The forecast projects $8.23 million in revenue for e-books in 2017.

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Innovation in Silicon Valley

Andrey Kamenov

Andrey Kamenov, Ph.D. Probability and Statistics

One particular area always stands out when discussing innovation in the United States: a portion of Santa Clara County, CA better known as Silicon Valley. The valley serves as a home to several of the largest high-tech companies in the country.

It’s not about the high-tech giants, though. The number of companies that were issued at least one new patent has doubled since 2000. The number of individually-issued patents also keeps growing slowly but steadily, as evidenced by the chart below.

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Home buyers: numbers and facts

Pavel Prikhodko, Ph.D. Machine Learning

If we examine the statistics representing first-time home buyers in the United States in 2015, we see that a majority of buyers in the 35-and-under age group were first-time buyers, at 67 percent. About 26 percent, of 36 to 50-year-olds were first-time buyers in 2015. The share of first-time buyers in the 51 to 60-year-old age group amounted to 11 percent, while people aged 61 to 69 who were first-time buyers only made up 6 percent.

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Satisfaction with Life and Happiness in the U.S.

Kristine Barseghyan

Kristine Barseghyan, Ph.D. (ABD) Social Sciences

The phrase “I’d rather cry in a BMW than laugh on a bicycle,” now a catchphrase, belongs to a 20-year-old female contestant on a Chinese game show. For her, like for many of us, sadness in luxury is preferable to happiness in necessity. But when the conditions for happiness are that high, frustration with reality makes people unhappy. China is generally not a very happy nation — it finished in a low 93rd in the World Happiness Report published by the United Nations in September 2013.[i] In contrast, Denmark, which has the second most bicycles per capita (4,500,000 bicycles per 5,560,628 people, 80.1 percent of the population being cyclists)[ii], is the happiest nation in the world. BMWs are not for everyone, but bicycles are.

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Finding patterns in gun violence in the U.S.

Andrey Kamenov

Andrey Kamenov, Ph.D. Probability and Statistics

The deadliest shooting in U.S. history happened last year in Las Vegas. But there is much more to gun-related incidents. The Gun Violence Archive database is one of the most complete sources of data. By now, it has records of over 30,000 gun-related incidents that happened this year — and that’s excluding accidental shootings.

Is there any pattern? Or are these incidents completely random?

Here’s a plot showing the total number of incidents, day-by-day, from the start of the year.

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Hard market: consumption and production of cement

Pavel Prikhodko, Ph.D. Machine Learning

Cement is one of the world’s key building materials, both in the residential and nonresidential sectors. This material is also used for the production of concrete. Thus, over 70 percent of cement sales in the United States were made to producers of ready-mixed concrete, and about 12 percent of sales went to concrete product manufacturers. According to information published at Statista.com, around 4,100 million metric tons of cement were produced globally in 2015. The U.S. accounted for about 83.4 million metric tons of this production. The year before, 4,180 million metric tons of material were produced worldwide, and 83.2 million metric tons were produced in the U.S. In 2013, these numbers decreased: 4,080 million metric tons globally and about 77.4 million metric tons in the U.S.

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Where are the safest jobs in the United States located?

Andrey Kamenov

Andrey Kamenov, Ph.D. Probability and Statistics

Where are the safest jobs in the United States located? Surprisingly, it’s not New York or California.

Quite recently, the Bureau of Labor Statistics released the 2015 Census of Fatal Occupational data. Below is the map showing the number of fatal injuries per 100,000 workers in each state.

Fatal injuries per 100,000 workers each year

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The Economic Impacts of New MLS Stadiums

Benjamin Schultz

Benjamin Schultz, Ph.D. Geography

There are very few events that have the ability to bring people together (or to push them apart) quite like sports. Sports franchises possess the ability to become the public face of an entire city. As such, big-city mayors from Boston to San Francisco are jumping on board to participate in the current boom in the construction of sports-related facilities. According to the Brookings Institution, American cities spent over $7 billion on new facilities in the first decade of the 2000s, most of which came from public sources.

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Golden States: production of the most precious material

Pavel Prikhodko, Ph.D. Machine Learning

Historically, gold has been the most precious and coveted metal in the world due to its rarity. Currently, China is the world’s leading producer of gold, followed by Australia and Russia. Approximately 3,000 metric tons of gold were produced worldwide in 2015. In 2014, some 2,990 metric tons of gold were produced globally. The year before, in 2013, the world’s gold production approximated to around 2,800 thousand metric tons. In 2012 and 2011, the amount of gold produced globally amounted to 2,690 thousand metric tons and 2,660 thousand metric tons accordingly.

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