Capacities,innovation and feedbacks in production networks in Argentina

This paper is based on an application of the complex systems approach to economics with the objective of exploring the micro- and meso-mechanisms of development. Under this approach, innovation can be seen as an emergent property that depends on micro interaction and on specificities of macro structure. This study emphasizes that the micro interactions can be described by the feedback mechanisms between the absorption and connectivity capacities of firms, and the macro structure by processes of creative destruction, knowledge appropriation and structural change. The paper presents empirical evidence on the feedback loops between absorption and connectivity capacities in production networks in Argentina and their impact on innovation results. This paper concludes that the restrictions on absorption capacity and mainly on connectivity capacity in several production networks in Argentina condition the development of positive feedbacks between the two capacities, and hence the scope of the innovation path.     

Evolution and market behavior with endogenous investment rules

In a repeated market for short-lived assets, we investigate wealth-driven selection among investment rules that depend on endogenous market variables, such as current and past prices. We study the random dynamical system describing prices and wealth dynamics and characterize local stability of the long-run equilibria in which one or a group of traders dominate. Multiplicity of stable and unstable equilibria, leading to path dependency and persistent heterogeneity, turns out to be a common phenomenon generated by two different mechanisms. Firstly, conditioning investment decisions on endogenous market variables implies that the relative performance of investment rules, in terms of average growth rates, may be different for different prevailing prices, so that the market may fail to select a global winner. Secondly, the feedback existing between past asset prices and current investment decisions can lead to a form of deterministic overshooting.     

Macroeconomics from a higher standpoint

Dr A Vasudevan and Prof P Ray are scholars and teachers of monetary theory as well as practitioners of the art of monetary policy. The short message of the slim volume under review is that the weights attached to the two domains are variable. Thus, politics matters with the finitude of power in office. In practice, discretion scores over rules. The Phillips curve is askew and the problem of adding financial stability to the tradeoff or tradein might not be an unsolvable problem. The authors make a case for the revival of planning complete with sectoral distinctions and with government choice of green techniques and long-term finance. They ruminate on the unravelling of the “impossible trinity” and resurrect Keynes’ plan for an International Clearing Union. In sum, a “philosophy of development” trumps the Theil-Tinbergen theorem on instruments and targets.     

城市森林游憩者行为特征分析及满意度测量——以南京紫金山森林公园为例

以南京紫金山国家森林公园为调查地,对城市森林游憩者行为特征和满意度调查问卷研究显示:有着高等教育背景、较为稳定的工作和中等以上经济收入的当地中青年居民是城市森林双休日登山游憩的主要群体;游憩者到访城市森林的频率较高,更在意双休日和节假日的个人情感效益和社会文化效益;在城市森林公园中的花费不多,游憩支出受收入的影响不大;游憩者已具备一定的生态保护意识但还有待加强;游憩者对城市森林的景观质量及景区环境满意度较好,对基础设施、管理和服务的满意度不高。     

企业科学研究反哺存在最优财政支持模式吗？ ——基于财政科技支出集中度视角

基于2010—2020年我国省级区域的规上工业企业数据,探讨财政科技支出集中度对企业科学研究反哺的作用效应。结果表明：提升区域财政科技支出集中度,可抑制企业科学研究反哺强度和倾向。分区域角度分析,东部地区反哺强度受到激励,西部地区反哺倾向受到抑制,中部地区反哺倾向虽受到激励但反哺强度受到抑制。调节效应和门槛效应分析显示,提升财政科技支出强度或企业绩效可逆转财政科技支出集中度对反哺强度的抑制性,低企业绩效可加剧财政科技支出集中度对反哺倾向的抑制,而提升企业绩效可减弱上述抑制效应。