This paper explores a multiproduct firm’s process innovation of high-and lowquality goods with knowledge accumulation in a vertically differentiated monopoly.We show that:(i)the system admits a saddle-point steady-st...This paper explores a multiproduct firm’s process innovation of high-and lowquality goods with knowledge accumulation in a vertically differentiated monopoly.We show that:(i)the system admits a saddle-point steady-state equilibrium under firm decision-making and social planner adjustment,respectively;(ii)the firm’s learning rates of knowledge accumulation of process innovation call for more intense efforts in both directions;(iii)there is a substitution between the process innovation for these two kinds of goods;(iv)the social incentive towards both kinds of innovation efforts is always larger than the private incentive characterizing the profit-seeking firm.Our contribution extends the dynamic innovation literature that focuses on singlegood and considers the effects of corresponding knowledge accumulation on process innovation of these two kinds of goods.Further,this theoretical work contributes to the design of efficient innovation effort strategies for firms’process innovation with corresponding knowledge accumulation in a vertically differentiated monopoly market.展开更多
Accumulation of vocabulary, knowledge and experience is the foundation of comprehension and expression in simultaneous interpretation. This paper suggests the importance of accumulation in the development of a success...Accumulation of vocabulary, knowledge and experience is the foundation of comprehension and expression in simultaneous interpretation. This paper suggests the importance of accumulation in the development of a successful interpreter.展开更多
Based on the three-region local spillover(Ls)model extended by new economic geography,this paper theoretically analyzes the formation mechanism,structural characteristics,and spatial evolution of urban agglomeration i...Based on the three-region local spillover(Ls)model extended by new economic geography,this paper theoretically analyzes the formation mechanism,structural characteristics,and spatial evolution of urban agglomeration innovation centers.It subsequently conducts an empirical test on the Yangtze River Delta urban agglomeration,recognized for its strong innovative urban agglomeration attributes.There are four findings.(1)The cyclical accumulation of causality underlying urban agglomeration innovation centers is rooted in the accumulation of knowledge capital.As knowledge capital aggregates,urban innovation costs gradually decline,thereby fostering the endogenous agglomeration of knowledge capital.This cycle repeats and ultimately facilitates the formation of innovation centers.(2)The spatial spillover of knowledge capital serves as the primary driver in establishing innovation centers.Variations exist between local and cross-regional spillovers of knowledge capital across different regions of urban agglomerations,further reinforcing the"innovation center-peripheral city"structure.(3)The interactive innovation within urban agglomerations is characterized by knowledge spillovers from the innovation centers,which solidify the"agglomeration"structure,while the absorptive role of peripheral cities enhances the competitiveness of the"center,"ultimately improving the overall welfare of the urban agglomerations.(4)In the Yangtze River Delta urban agglomeration,home market effects and knowledge capital spillover effects support the establishment of innovation centers,while market crowding effects exert a restraining influence.The development of urban agglomeration innovation centers is a crucial cornerstone for advancing national innovation-driven development strategies and optimizing the innovative development framework of urban agglomerations.This paper offers new perspectives on addressing the siphoning effect of central cities and optimizing the allocation of innovative resources,while also providing a theoretical foundation and decision-making references for establishing innovation systems and urban agglomeration innovation centers.展开更多
文摘This paper explores a multiproduct firm’s process innovation of high-and lowquality goods with knowledge accumulation in a vertically differentiated monopoly.We show that:(i)the system admits a saddle-point steady-state equilibrium under firm decision-making and social planner adjustment,respectively;(ii)the firm’s learning rates of knowledge accumulation of process innovation call for more intense efforts in both directions;(iii)there is a substitution between the process innovation for these two kinds of goods;(iv)the social incentive towards both kinds of innovation efforts is always larger than the private incentive characterizing the profit-seeking firm.Our contribution extends the dynamic innovation literature that focuses on singlegood and considers the effects of corresponding knowledge accumulation on process innovation of these two kinds of goods.Further,this theoretical work contributes to the design of efficient innovation effort strategies for firms’process innovation with corresponding knowledge accumulation in a vertically differentiated monopoly market.
文摘Accumulation of vocabulary, knowledge and experience is the foundation of comprehension and expression in simultaneous interpretation. This paper suggests the importance of accumulation in the development of a successful interpreter.
基金supported by the key research project"Analysis of Economic Synergy and Influencing Factors between Anhui Province and Yangtze River Delta Region"(No.SK2021A0829),approved by the Humanities and Social Sciences in Colleges and Universities in Anhui Provincethe project"Research on Promoting Investment and Value Chain Construction under the‘Belt and Road Initiative'under the New Dual Circulation Pattern"(No.21BJY008),approved by the National Social Science Fund of China.
文摘Based on the three-region local spillover(Ls)model extended by new economic geography,this paper theoretically analyzes the formation mechanism,structural characteristics,and spatial evolution of urban agglomeration innovation centers.It subsequently conducts an empirical test on the Yangtze River Delta urban agglomeration,recognized for its strong innovative urban agglomeration attributes.There are four findings.(1)The cyclical accumulation of causality underlying urban agglomeration innovation centers is rooted in the accumulation of knowledge capital.As knowledge capital aggregates,urban innovation costs gradually decline,thereby fostering the endogenous agglomeration of knowledge capital.This cycle repeats and ultimately facilitates the formation of innovation centers.(2)The spatial spillover of knowledge capital serves as the primary driver in establishing innovation centers.Variations exist between local and cross-regional spillovers of knowledge capital across different regions of urban agglomerations,further reinforcing the"innovation center-peripheral city"structure.(3)The interactive innovation within urban agglomerations is characterized by knowledge spillovers from the innovation centers,which solidify the"agglomeration"structure,while the absorptive role of peripheral cities enhances the competitiveness of the"center,"ultimately improving the overall welfare of the urban agglomerations.(4)In the Yangtze River Delta urban agglomeration,home market effects and knowledge capital spillover effects support the establishment of innovation centers,while market crowding effects exert a restraining influence.The development of urban agglomeration innovation centers is a crucial cornerstone for advancing national innovation-driven development strategies and optimizing the innovative development framework of urban agglomerations.This paper offers new perspectives on addressing the siphoning effect of central cities and optimizing the allocation of innovative resources,while also providing a theoretical foundation and decision-making references for establishing innovation systems and urban agglomeration innovation centers.
