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为了开发可靠的设施园艺研究照明解决方案,推出 Agri-Power Led 科研照明模组。在科研过程中为达到不同的效果,需要在植物生长的不同阶段, 每天不同时刻提供不同光配方的专门的光照。 Agri-Power Led 科研照明模组提供红色、蓝色、绿色和远红一体的灯板。红光和蓝光是作物生长最需要的光,人眼几乎不可见的远红光影响特定植物属性的发育,而绿光可抑制植物生长,通过调整四种光的配方,您可以将...
Capacity markets are a means to assure resource adequacy. The need for a capacity market stems from several market failures the most prominent of which is the absence of a robust demand-side. Limi...
Recently there has been a signi"cant decline in the degree to which "rms &pass through' changes in costs to prices, a decline that is frequently characterized as a reduction in the &pricing power' o...
Over the past 20 years, the use of monetary policy rules has become pervasive in analyzing and prescribing monetary policy. This paper traces the development of such rules and their use in the anal...
An important issue in addressing the adequacy of regulation and supervision is the problem of regulatory capture, or the tendency for regulated fi rms and their government regulators to develop mutu...
Why did limited government and 'constitutionalism' (the rule of law, constitutional rules, and political representation) evolve in some societies but not others? Guided by history, this paper examin...
The contribution of new goods to economic welfare is a first order question for understanding the growth of modern economies. New attention to this question has improved both our understanding of the ...
Using a sample of 4,278 listed UK firms, we construct a social network of directorship-interlocks that comprises 31,495 directors. We use social capital theory and techniques developed in social netwo...
We use loan-level data to study how the organizational structure of banks impacts small business lending. We find that decentralized banks-where branch managers have greater autonomy over lending deci...
We present evidence that high concentration in mortgage lending reduces the sensitivity of mortgage rates and refinancing activity to mortgage-backed security (MBS) yields. We isolate the direct effec...
Using state-level variation in the timing of political reforms, we find that an increase in female representation in local government induces a large and significant rise in documented crimes against ...
It has been said that deregulation was an important source of the recent financial crisis. It may be more accurate, however, to say that a deregulatory mindset was an important source of the crisis—a ...
The magnitude of the current financial crisis reflects the failure of an economic and regulatory philosophy that had proved increasingly influential in policy circles over the past three decades. Thi...
We use loan-level data to study how the organizational structure of banks impacts small business lending. We find that decentralized banks—where branch managers have greater autonomy over lending deci...
In this paper we develop a process model relating market share to firm profits. In particular, we specify average price and average cost equations as a function of previous year market share position,...

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