The fundamental problem in the field of the economics of innovation is which economic subjects are the sources of radical innovations and high technological performances. The study here confronts this problem by developing a theoretical framework underpinned in the concept of purposeful system...

Frame and Carpenter 1979 analysed the pattern of international research collaboration among scientific fields in 1970s. Starting from this pioneering work, this paper investigates international collaborations over 1997-2012 and compares the critical results with earlier studies to detect the...

Provides some theoretical developments on the topic of the performativity of economics.

This paper examines how the fertility of enslaved women was affected by the promise of freedom. Exploiting geographic variation in the effect of the Fugitive Slave Law of 1850, I demonstrate a negative correlation between fertility and the distance to freedom. This negative correlation is...

Much has been written about the modern obesity epidemic, and historical BMIs are low compared to their modern counterparts. However, interpreting BMI variation is difficult because BMIs increase when weight increases or when stature decreases, and the two have different implications for human...

This study analyzes trends and determinants of the height of men born in the 100 largest American urban areas during the second half of the nineteenth century and compares them with heights of the rural population. In this sample of 21,704 US Army recruits, there is an urban height penalty of up...

The US tolerates more inequality than Europe and believes its economic mobility is greater than Europe?s, though they had roughly equal rates of intergenerational occupational mobility in the late twentieth century. We extend this comparison into the nineteenth century using 10,000...

We reanalyze Long and Ferrie's data. We find that the association of occupational status across generations was quite similar over time and place. Two significant differences were: (i) American farms in 1880 were far more open to men who had nonfarm backgrounds than were American farms in 1973...

This article analyses the contribution of the second wave of immigrants to the United States to the formation of the young American people. Unlike other states, the USA is a nation founded on waves of immigrants coming from different parts of the world. This paper includes the second wave of...

This paper studies the level and the causes of earnings inequality in late nineteenth century America and Britain using microdata from the United States Commissioner of Labor Survey in 1890 and 1891. We examine whether lessons from studies on changes in earnings inequality over time -- the...