What factors underlie industry differences in research intensity and productivity growth? We develop a multi-sector endogenous growth model allowing for industry specific parameters in the production functions for output and knowledge, and in consumer preferences. We find that long run industry differences in both productivity growth and R&D intensity mainly reflect differences in "technologica...

Recent diffusion models cannot explain why the success of technology diffusion depends so critically on developing countries’ human capital levels. This paper examines three main issues. First, we endogenize both appropriate technologies and human capital formation. Second, we refine the human capital accumulation process by introducing uncertainty about worker quality and training efficiency. ...

We set up an endogenous growth model with physical capital, human capital and blueprints for intermediate goods. The model can generate steady-state growth or stagnation. Along the adjustment path for a developing economy we can distinguish di!erent stages of development. The "rst stage is characterized by physical factor accumulation. At the second stage the economy follows a growth path which...

The convergence features of an Endogenous Growth model with Physical capital, Human Capital and R&D have been studied. We add an erosion effect (supported by empirical evidence) to this model, and fully characterize its convergence properties. The dynamics is described by a fourth-order system of differential equations. We show that the model converges along a one-dimensional stable manifold an...

This paper is concerned with casting o! the standard assumption } the production function displays socially constant returns to scale } in a simple growth model with public inputs. In the model, public services work as a source of utility and as an input to production. Making use of the global bifurcation technique, we show that the model can generate a whole spectrum of interesting dynamics, w...

We examine whether the Phelps–Koopmans theorem is valid in models with nonconvex production technologies. We argue that a nonstationary path that converges to a capital stock above the smallest golden rule may indeed be efficient. This finding has the important implication that “capital overaccumulation” need not always imply inefficiency. Under mild regularity and smoothness assumptions, we pr...

Background and Purpose Incidence, case-fatality rate at 28 days, and severity of acute stroke were recorded for 7 years in a large population-based stroke register to understand the reasons for the decline in stroke mortality in northern Sweden. Methods Within the framework of the World Health Organization MONICA Project, acute stroke was monitored in people aged 35 to 74 years in northern Swed...

In this paper we analyze how the tax compliance policy affects the rate of economic growth. We consider a model of overlapping generations in which the paths of all the macroeconomic variables are endogenously determined and we perform the comparative statics analysis of changes in both the probability of inspection and the penalty fee imposed on tax evaders. We also show the nonoptimality from...

Whether or not the marginal product of capital (MPK) differs across countries is a question that keeps coming up in discussions of comparative economic development and patterns of capital flows. Using easily accessible macroeconomic data we find that MPKs are remarkably similar across countries. Hence, there is no prima facie support for the view that international credit frictions play a major...

This paper concludes the study of transition paths in the continuous-time recombinant endogenous growth model by providing numerical methods to estimate the threshold initial value of capital (a Skiba-type point) above which the economy takes off toward sustained growth in the long run, while it is doomed to stagnation otherwise. The model is based on the setting first introduced by Tsur and Ze...