Search results for "Category theory"
showing 10 items of 1172 documents
Unravelling the moderating effects of size and experience on product innovations and exports: a study in a medium knowledge-intensive industry
2012
This paper contributes to improve our knowledge on the important role of product innovation in export strategy by introducing the moderating effects of organizational variables. We argue that in a medium knowledge-intensive industry, these variables might strengthen the relationship between innovations and exports. Research on innovation and export strategy has addressed these issues increasingly during last decades; however, the divergence on the empirical approaches difficult the understanding of the linkages among variables, which are highly dependent on the industry technological characteristics. We carry out a time-lagged study using the literature-based innovation output (LBIO) method…
Double adjunctions and free monads
2011
We characterize double adjunctions in terms of presheaves and universal squares, and then apply these characterizations to free monads and Eilenberg--Moore objects in double categories. We improve upon our earlier result in "Monads in Double Categories", JPAA 215:6, pages 1174-1197, 2011, to conclude: if a double category with cofolding admits the construction of free monads in its horizontal 2-category, then it also admits the construction of free monads as a double category. We also prove that a double category admits Eilenberg--Moore objects if and only if a certain parameterized presheaf is representable. Along the way, we develop parameterized presheaves on double categories and prove …
Experimental Characterization of a Double Receiver Dynamic Wireless Charging System
2020
The aim of this work is the characterization of a dynamic wireless charging system low power prototype and the validation of a simplified mathematical model of the employed double D coils. The difference between a single receiver and a dual receiver system is also shown, highlighting how the last one can significantly reduce the costs of the charging infrastructure.
Consumers' perceptions of sustainably produced food: a focus group study
2009
The purpose of this study is to provide information on consumers' perceptions of sustainably produced food products and the main product attributes that influence consumers' buying behaviour in the case of organic, Fair Trade and locally produced food. The paper draws on data from four focus groups. The results provide empirical insight into the motivating as well as the restricting factors that influence consumers' purchasing behaviour in the case of sustainably produced food and introduce the emerging key themes associated with the attributes of sustainably produced food products.
Foreign sourcing and exporting
2020
The aim in this paper is analysing the role of sourcing intermediate inputs internationally on export decisions, distinguishing whether intermediate are sourced from firms belonging to the same business group or from independent suppliers. To analyse firm’s export decision, we use a specification that also accounts for sunk costs and the accumulated experience in export markets (i.e., foreign markets learning). We consider that importing intermediates might have direct and indirect effects (operating through productivity) on the export participation decision. The direct effects on exporting are isolated once we control for productivity and the effects of belonging to an international group.…
Previous experience, experimentation and export survival : Evidence from firm-product-destination level data
2021
This paper explores the role of a firm's product and/or market export experience and experimentation for survival of new product-destination export spells, using firm-level Spanish customs data over the period 1997-2015. Previous research has documented a positive impact of experience on export survival. This paper contributes to the extant literature by unravelling the distinct effect on export survival of ongoing accumulated experience (i.e., from the start of a product-destination export spell), previous product and/or destination-market experience and experimentation (repetition of product-destination relationships). We find that 60% of new product-country export spells end during their…
A new approach to modelling the input-output structure of regional economies using non-survey methods
2021
AbstractThis paper proposes a new approach to the regionalization of national input–output tables where suitable regional data are scarce and analysts are considering using location quotients (LQs). We focus on the FLQ formula, which frequently yields the best results of the pure LQ-based methods, and develop an enhanced way of implementing this approach. We use a modified cross-entropy (MCE) method, along with a regression model, to estimate values of the unknown parameter δ in the FLQ formula, specific to both region and country. An analysis of survey-based data for 16 South Korean regions reveals that the proposed FLQ+ approach yields more accurate estimates of both input coefficients an…
The role of private equity: from focus on the product to focus on value creation
2009
Orginal article published by InderScience publishers. Avaialble from: http://dx.doi.org/10.1504/IJEIM.2009.025141 As a consequence of the paradigm shift from an industrial society to an information society, the role of the entrepreneur ought to change from being an inventor of product/services to become a value creator. Hence, the focus of entrepreneurial ventures should be shifting towards creating viable business models rather than superior product/services. One major implication of the shift of entrepreneurial endeavour from product/services towards creating new business models is that hands on investors behind companies’ have to be involved closer to the inception of new ventures in ord…
The effect of sex antidiscriminatory legislation on the variability of female employment in Britain
1985
This paper examines the variability of female employment in the 1970s. It is based on data from the New Earnings Survey so that the behaviour of employment in the manual–nonmanual and manufacturing–nonmanufacturing sectors can be studied separately. At an aggregate level the results are compared to those derived using data from the Department of Employment, to ensure that the results are not simply the product of possible sampling variation of the New Earnings Survey. The findings of this paper, though far from conclusive, indicate that female employment vis-a-vismale employment became more stable after 1976. There may be many reasons for the decrease in relative variability of female emplo…
Strategic product variety and quality choice
2019
Abstract We examine the linkages between strategic product assortment, quality choice, and pricing by multi-product firms as well as the welfare effects from those linkages. The analysis shows that strategic effects can lead to relevant inefficiencies. Specifically, the analysis identifies effects which can induce insufficient or excessive product quality relative to the socially optimal level of quality.