Betriebsdaten zusammengefügten Datensatzes, für West-Deutschland (1994-1997) untersucht. Schätzungen der bedingten Arbeitsnachfrage …

substitution between fuelwood collected from open access forest resources, cow dung and fuelwood purchased from the market are … for substitution from fuelwood to other energy sources, particularly with the declining availability of forest stocks. All …

complementary and substitution between MBB and FBB cannot be given an answer at this stage. The crucial problem of comparing MBB and …

networks, Communication modes, Knolwedge contacts, Substitution, the Netherlands …

Traditional resource economics has been criticised for assuming too high elasticities of substitution, not observing … conditions even when elasticities of substitution between capital and resources are low and the supply of physical capital is …

advertising companies, substitution tendencies cannot be generalized. In particular, we argue that newspaper advertising offers … substitution between newspaper and online advertising can be expected to take place on the advertising side in the foreseeable …

& Budzinski (2011) argued from a theoretical viewpoint that industry-specific patterns exist that determine substitution or … evidence for some of the hypotheses. Whereas some industries showed clear substitution effects between internet display and … newspaper advertising, the majority of our hypotheses could be only partly rejected: newspaper substitution effects could be …