＜書評＞Shiho Satsuka, Nature in translation : Japanese tourism encounters the Canadian Rockies

書評Duke University Press, 2015, 280

Principal-Agent Problem with Third Party: Information Design from Social Planner's Perspective

We study the principal-agent problem with a third party that we call social planner, whose responsibility is to reconcile the conflicts of interest between the two players and induce socially optimal outcome in terms of some given social utility function. The social planner owns no contractual power but manages to control the information flow between the principal and the agent. We design a simple workflow with two stages for the social planner. In the first stage, the problem is reformulated as an optimization problem whose solution is the optimal utility profile. In the second stage, we investigate information design and show that binary-signal information structure suffices to induce the socially optimal outcome determined in the first stage. The result shows that information plays a key role in social planning in the principal-agent model

Electrochemical deposition of CIS films for photovoltaic applications

Master'sMASTER OF ENGINEERIN

The Influence of Different Management Modes on the Potential of Moso Bamboo Carbon Sink Based on Survey Data of Yuhang and Lin’an

Bamboo forest carbon sequestration has strong development potential in coping with global climate change. The management of Moso bamboo forest can exert its own strong carbon sequestration ability and promote farmers' income, which is the fundamental point of bamboo industry development and can integrate ecological, economic, and social benefits. In this study, two Moso bamboo forests with different management modes in Lin'an and Yuhang of Zhejiang Province were used as research points. Using the system dynamic thinking method, a dynamic system model was constructed to simulate the growth process of Moso bamboo and its carbon sink supply. Then comparative analysis was made of its carbon sink supply potential. It is easy for bamboo forest managers to change management measures according to their requirements and create a dynamic balance between ecology and economics when determining the optimum management mode for the bamboo forest under the supply potential of carbon sink. According to the study results, the carbon sink supply under the intensive model is the most ideal, while the carbon sink supply under the extensive peach blossom model is the least ideal

Essays on Immigration and Frictional Labor Markets

This dissertation consists of three essays which rationalize the effects of immigration on labor market outcomes. Chapter 2 provides an explanation of the impact of immigration on labor market outcomes and crime. Chapter 3 discusses how immigration behavior of workers affect the population of immigrants and labor market outcomes between developed and developing countries. Chapter 4 studies the impact of skilled immigrants on the measure of overeducation in the United States.The relationship between immigration and crime is one of the important issues on immigration that people are concerned about. In chapter 2, I construct a model that can explain the relationship between immigration and crime and tracks worker's criminal behavior. This model allows all workers to meet criminal opportunities and commit the opportunity that they meet if its value is sufficiently high. This criminal behavior is determined by the value that workers have in the legal sector. The model predicts that the crime rate decreases by 0.156 per 1000 population with an increase in the population of immigrants in the 2000s. Particularly, the crime rate decreases by 0.226 with an increase in the population of skilled immigrants only but increases by 0.061 with an increase in unskilled immigrants.Chapter 3 studies the migration behavior of workers and the impact of immigration policies on labor market outcomes. The migration behavior is highly related to labor market conditions and the direction of flows can be inverted. Chapter 3 models the migration behavior with two skilled bias frictional labor markets between the two countries. The model captures the double-direction flows of skilled workers between the United States and Mexico and shows that unskilled immigrants flow only from Mexico to the United States. The model also discusses the immigration policy effects on controlling the population of immigrants. Chapter 4 focus on the impact of immigration on overeducation in the United States. Since the 1990s, the population of immigrants, especially skilled foreign workers. I apply the mismatch measure model from Sahin et al. (2014). With the CES production function, when there are more skilled workers in the labor market, the marginal price of skilled labor decreases and skilled jobs become less valuable. This effect may push skilled workers to search in the unskilled labor market and increase the measure of mismatch in the United States

Anharmonic phonon-phonon scattering at interface by non-equilibrium Green's function formalism

The understanding and modeling of inelastic scattering of thermal phonons at a solid/solid interface remain an open question. We present a fully quantum theoretical scheme to quantify the effect of anharmonic phonon-phonon scattering at an interface via non-equilibrium Green's function (NEGF) formalism. Based on the real-space scattering rate matrix, a decomposition of the interfacial spectral energy exchange is made into contributions from local and non-local anharmonic interactions, of which the former is shown to be predominant for high-frequency phonons whereas both are important for low-frequency phonons. The anharmonic decay of interfacial phonon modes is revealed to play a crucial role in bridging the bulk modes across the interface. The overall quantitative contribution of anharmonicity to thermal boundary conductance is found to be moderate. The present work promotes a deeper understanding of heat transport at the interface and an intuitive interpretation of anharmonic phonon NEGF formalism