Showing 1 - 10 of 841
that there is unique positive global solution. We establish the sufficient conditions for disease extinction. The … sufficient condition for disease persistence is also given. The basic reproduction number (R∗) of the deterministic system is …
Persistent link: https://www.econbiz.de/10014541692
conditions for extinction exponentially and persistence in the mean are established. The results are illustrated by computer …
Persistent link: https://www.econbiz.de/10010742334
strong persistence effects or even hysteresis effects The empirical analysis is based on G-7 quarterly output data as well as …
Persistent link: https://www.econbiz.de/10010293484
This paper proposes a model of the US unemployment rate which accounts for both its asymmetry and its long memory. Our approach, based on the tests of Robinson (1994), introduces fractional integration and nonlinearities simultaneously into the same framework (unlike earlier studies employing a...
Persistent link: https://www.econbiz.de/10010295392
This paper investigates the role of self-productivity and home resources in capability formation from infancy to adolescence. In addition, we study the complementarities between basic cognitive, motor and noncognitive abilities and social as well as academic achievement. Our data are taken from...
Persistent link: https://www.econbiz.de/10010298078
This paper investigates the development of basic cognitive, motor and noncognitive abilities from infancy to adolescence. We analyse the predictive power of these abilities, initial risk conditions and home resources for children's achievement. Our data are taken from the Mannheim Study of...
Persistent link: https://www.econbiz.de/10010298681
Although colleges and universities are facing increased scrutiny to demonstrate a return on investment for their students, the demand for college-educated workers continues to grow. As of 2010, the U.S. Census Bureau estimated that more than one-fifth of Americans age 25 and older—around 43.5...
Persistent link: https://www.econbiz.de/10012045369
Roman parts of Germany. The study identifies the persistence of the Roman road network until the present as an important …
Persistent link: https://www.econbiz.de/10011319141
Using a natural experiment from Germany, we show that temporary place-based subsidies generate persistent effects on economic density. We identify employment and capital formation as main channels for higher income per square kilometer. As the spatial regression discontinuity design allows us to...
Persistent link: https://www.econbiz.de/10011400600
Using a natural experiment from Germany, we show that temporary placebased subsidies generate persistent effects on economic density. We identify employment and capital formation as main channels for higher income per square kilometer. As the spatial regression discontinuity design allows us to...
Persistent link: https://www.econbiz.de/10011420633