Feedback Rules for Inflation Control: An Overview of Recent Literature

Feedback rules are rules aimed at guiding policy-makers as they face the problem of keeping inflation close to a desired path without causing variability elsewhere in the economy. These rules link short-term interest rates, controlled by the central bank, to the rate of inflation and/or its deviation from a target rate. The authors describe the most popular types of feedback rules and review some simulation results.

Adaptive kernel estimation of the baseline function in the Cox model, with high-dimensional covariates

The aim of this article is to propose a novel kernel estimator of the baseline function in a general high-dimensional Cox model, for which we derive non-asymptotic rates of convergence. To construct our estimator, we first estimate the regression parameter in the Cox model via a Lasso procedure. We then plug this estimator into the classical kernel estimator of the baseline function, obtained by smoothing the so-called Breslow estimator of the cumulative baseline function. We propose and study an adaptive procedure for selecting the bandwidth, in the spirit of Gold-enshluger and Lepski (2011). We state non-asymptotic oracle inequalities for the final estimator, which reveal the reduction of the rates of convergence when the dimension of the covariates grows

Peningkatan Pemahaman Konsep Siswa pada Materi Pewarisan Sifat Melalui LKS Berbantuan Media di SMPN 2 Selat Tahun Ajaran 2022/2023

This study aims to improve students' conceptual understanding of inheritance by using worksheets. This type of research is descriptive. It was carried out in the second semester of Academic Year 2022/2023. The subjects were the students of Grade IX at SMPN 2 Selat in Academic Year 2022/2023. The research was conducted with five (5) learning stages they were Pre-LKS, LKS, Post-LKS, Discussion, and Post-Discussion. Research data were obtained by using tests given to students at the Pre-LKS, Post-LKS and Post-Discussion stages. The results of the study show the changes in students' understanding of concepts as follows: : (1) Indicator 1 explains the role of genetic material in determining traits, the average number of students who answered correctly was 46.38% at the pre-worksheet stage, 81.16% at the post-worksheet stage, increased to 82.61% in the post-discussion stage. (2) Indicator 2 determines the results of monohybrid crosses through diagrams according to the laws of inheritance, the average number of students answering correctly was 33.04% in the pre-worksheet stage, 37.39% in the post-worksheet stage, increasing to 60.00% in the post-worksheet stage discussion. (3) Indicator 3 makes a cross chart according to the data that has been presented, the average number of students who answered correctly was 45.65% in the pre-LKS stage, 56.52% in the post-LKS stage, increasing to 70.72% in the post-LKS stage discussion. The data of this study indicate that the use of media assisted worksheets can improve students' conceptual understanding of inheritance

Income Redistribution and Public Good Provision: an Experiment

We provide a new experimental investigation of the neutrality theorem of Warr (1983), who states ”when a single public good is provided at positive levels by private individuals, its provision is unaffected by a redistribution of income”. Instead of comparing different income distributions across groups as Chan et al. (1996), in our experiment the total group endowment is redistributed after a 10 rounds sequence. We compare an unequalizing redistribution (EI) and an equalizing redistribution (IE), to two benchmark treatments for which the 10 rounds sequence is repeated, either with an equal distribution (EE) or an unequal distribution (II). The constituent game has a unique interior dominant strategy equilibrium. Our data support the neutrality theorem (after controlling for the restart effect): redistribution has no effect on the total amount of public good in none of the tested treatments. However, the analysis of individual behavior shows that ”poor” subjects over-contribute with respect to their Nash-contribution, while ”rich” subjects tend to play their Nash-contribution or under-contribute slightly. Furthermore, after a redistribution, subjects react asymetrically: subjects who get poorer reduce their contribution of a larger amount than the amount of contribution added by subjects who become richer. And it is shown that the latter do not react enough to the redistribution.