supply chain
sort by: Relevancy | Title try advanced search for more options
-
These lectures are from a Radio Frequency Identification (RFID) Academic Conference which was held at MIT in January 2006. The conference was in connection to the MIT course Special Topics in Supply Chain Management. This course is centered on how RFID systems will transform the business landscape, with a particular emphasis on the supply chain. The course will take an interdisciplinary approach to analyzing the various aspects of a modern...more
-
Environmental Politics and Law (EVST 255) The lecture reviews water law in the United States, and highlights challenges inherent in regulating water quality. Aging water infrastructure, pesticide and herbicide application, and surface water runoff all pose challenges in maintaining a clean drinking water supply. The lecture covers pesticide management through the Safe Drinking Water Act (SDWA). The management of pesticides and herbicide...more
-
In this lecture, Professor Diamond continues her conversation on the heart, reviewing its chambers and discussing heart valves, heart sounds, cardiac cycle, pathways of the blood through the heart, conduction mechanism, and nerve supply. She first describes distinguishing characteristics of the ventricles, such as the thicker walls of the left ventricle. She also details the atrioventricular (AV) and semilunar (SL) valves that control bl...more
-
Hunter-gatherer populations were much less dense than later agriculturalists. The variety of their food supply protected them from crop failures and their sparseness reduced the spread of infectious diseases. Hunter-gatherers were healthier and worked less than early agriculturalists. Why didn't their numbers increase up to the same level of Malthusian misery? Their numbers may have been limited by violence between groups. Agriculture is m...more
-
In order for Social Security to work, people have to believe there's some possibility that the world will last forever, so that each old generation will have a young generation to support it. The overlapping generations model, invented by Allais and Samuelson but here augmented with land, represents such a situation. Financial equilibrium can again be reduced to general equilibrium. At first glance it would seem that the model requires a s...more
-
European populations grew only slowly during the period 1200-1700; factors include disease and wars. Human feces and rotting animal remains were not sequestered and often contaminated drinking water. Cities were so filthy that more people died in them than were born. About a third of children died in infancy, many from abandonment and lack of care during wet-nursing. Children that survived were subjected to harsh discipline to control thei...more
-
In order to understand the precise predictions of the Leverage Cycle theory, in this last class we explicitly solve two mathematical examples of leverage cycles. We show how supply and demand determine leverage as well as the interest rate, and how impatience and volatility play crucial roles in setting the interest rate and the leverage. Mathematically, the model helps us identify the three key elements of a crisis. First, scary bad news ...more
-
Work by Wöhler and Liebig on benzaldehyde inspired a general theory of organic chemistry focusing on so-called radicals, collections of atoms which appeared to behave as elements and persist unchanged through organic reactions. Liebig's French rival, Dumas, temporarily advocated radicals, but converted to the competing theory of types which could accommodate substitution reactions. These decades teach more about the psychology, sociology, ...more
-
Central Banks, originally created as bankers' banks, implement monetary policy using their leverage over the supply of money and credit standards. Since the Bank of England was founded in 1694, through the gold standard which lasted until the 1930s, and into modern times, central banks have pursued monetary policy to stabilize the banking system. Central banks monitor currency flows and inflation, acting when crises, such as bank runs, eme...more
-
After discussing the statistical basis of the law of mass action, the lecture turns to developing a framework for understanding reaction rates. A potential energy surface that associates energy with polyatomic geometry can be realized physically for a linear, triatomic system, but it is more practical to use collective energies for starting material, transition state, and product, together with Eyring theory, to predict rates. Free-radical...more
-
In the first half of the lecture, we consider the chain-store paradox. We discuss how to build the idea of reputation into game theory; in particular, in setting like this where a threat or promise would otherwise not be credible. The key idea is that players may not be completely certain about other players' payoffs or even their rationality. In the second half of the lecture, we stage a duel, a game of pre-emption. The key strategic ques...more
-
This lecture explains what an economic model is, and why it allows for counterfactual reasoning and often yields paradoxical conclusions. Typically, equilibrium is defined as the solution to a system of simultaneous equations. The most important economic model is that of supply and demand in one market, which was understood to some extent by the ancient Greeks and even by Shakespeare. That model accurately fits the experiment from the last...more
