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The paper develops a version of Pontryagin's maximum principle for optimal control problems with monotonicity constraints on control variables. Whereas the literature handles such constraints by imposing an assumption of piecewise smoothness on the control variable and treating the slope of this...
Persistent link: https://www.econbiz.de/10010264833
We solve an optimal growth model in continuous space, continuous and bounded time. The optimizer chooses the optimal trajectories of capital and consumption across space and time by maximizing an objective function with both space and time discounting. We extract the corresponding Pontryagin...
Persistent link: https://www.econbiz.de/10010272542
This essay studies the optimal timing for a firm to adopt a new process innovation in the presence of learning. A …
Persistent link: https://www.econbiz.de/10010427566
firm's decision between a product and process innovation. When firms have to choose between the two types of innovation, it … is demonstrated that both firms undertake the product innovation when the competition is intense. For intermediate levels … of competition, the firms choose different investment projects, and for less intense competition, the firms pursue cost …
Persistent link: https://www.econbiz.de/10010277223
Department for Human Capital and Innovation. It was completed in June 2014 and accepted as a doctoral thesis by the Department of …, while one is concerned with determinants of investment in ICT networks. The study uses German firm-level data and regional …
Persistent link: https://www.econbiz.de/10011698350
set on innovation for a large number of Italian firms over the 1990's. There is evidence that banking development affects … the probability of process innovation, particularly for small firms and for firms in high(er) tech sectors and in sectors … more dependent upon external finance. The evidence for product innovation is weaker. There is also some evidence that …
Persistent link: https://www.econbiz.de/10010267494
?s Investment Tests (IT) during the years 1988-1998, we create a panel with information on investment, innovation activity and … financing conditions. Financial constraints affect the distribution of investment over time in a fundamental way. Following a … on Schworm?s (1980) model of optimal investment under financial constraints, we use it to test the empirical content of …
Persistent link: https://www.econbiz.de/10010295647
This study examines the consequences of loan denials for the investment performance of small and medium-sized German … investment than non-innovative companies. The non-randomness of loan denials is controlled for with a selection equation …
Persistent link: https://www.econbiz.de/10010300385
In this paper we analyze disinflation policy when a central bank has imperfect information about private sector inflation expectations but learns about them from economic outcomes, which are in part the result of the disinflation policy. The form of uncertainty is manifested as uncertainty about...
Persistent link: https://www.econbiz.de/10010265530
We study optimal experimentation by a monopolistic platform in a two-sided market framework. The platform provider faces uncertainty about the strength of the externality each side is exerting on the other. It maximizes the expected present value of its profit stream in a continuous-time...
Persistent link: https://www.econbiz.de/10010334036