PPT-Research in Development Economics: Using IV Regressions in Empirical Work

Dr Kamiljon T Akramov IFPRI Washington DC USA Regional Training Course on Applied Econometric Analysis June 1223 2017 WIUT Tashkent Uzbekistan Outline Review of IV estimation Example 1 Institutions and growth. More regressions Fewer regressions QA accuracy +PP -PP Inverted 85% 76% Uninverted 92% 93% Interaction ps and QA accuracy QA accuracy Short Long Inverted 72% 63% Uninverted 90% 89% Interaction (p)Mai Week 22 Chemistry. Warm Up: . 3. Minutes. A certain bag of M&M’s has 8 blue candies, 7 red candies, 4 green candies, and 6 yellow candies. What percentage of the bag is blue M&M’s? . Record your Learning . How can conjectural variation models help?. Alan Crawford and . Benoît. Durand. OFT Seminar. The questions. Can we use conjectural variation models to . measure empirically market power?. identify the source of market power? Can we use conjectural variation models to tell whether market power is the result of product differentiation or collusion? . David L. . Baumer. , NC State University. Academy of Legal Scholars in Business, August 2010 Annual Conference. Empirical Research. Although not all legal scholarship requires empirical research, clearly in some instances, empirical research enhances the credibility of contentions made in scholarly legal writings. Objectives. To learn how to work out the percentage composition by weight of a compound. To use percentage composition to work out empirical formulae. Percentage compositions. This means what percentage of each element is present in a compound, and therefore tells you what masses of each element are present in any given mass of a compound. . Chemistry GT 3/20/15. Drill. Calculate the percent composition of Na. 2. SO. 4. .. HW: Molecular Formula WS (pg. 4). MM. =142.05 . g. /mol. 32.37% Na, 22.58% S, 45.05% O. Chem. Joke of the Day. The photon checked into a hotel. What did it say when the bellhop asked for its bag?. and Scientific Thinking . Brendan Conway. Corrine Vicari. Kaitlyn Creel. Matt Graham . Empirical Thought . Empirical thinking depends on past habit.. Based on observation and experience.. Ex. A-“It will probably rain tomorrow”. Percent Composition. Percent . Composition – . the . percentage . by mass of . each . element in a . compound (*note: not the ratio of elements in the compound). Law of Definite Proportions . – compounds always contain the same proportions of elements by mass.. Determining Molecular Formulas. Calculate the molecular formula of a compound whose molar mass is 60.0 g/mol and has an empirical formula of CH4N.. What you need:. Empirical Formula. Molar Mass. Calculate the molar mass of the empirical formula. Objectives:. -         . The student will determine an empirical, or simplest, formula from percentage composition data..  . PA Science and Technology Standards: 3.4.10.A; 3.4.12.A. PA Mathematics Standards: 2.2.11.A, 2.3.11.C, 2.4.11.E, 2.5.11.A. Percent Composition. Breaks down the amount of an element in a compound by percentage. Total mass of element / total mass of compound. Result will always be a decimal. Multiply by 100 to get the final percentage. Percent Composition. ~percent by mass of atoms present in a compound. = (mass of atom). . (total molar mass) x 100. water is . 88.81 . % Oxygen and . 11.19 . % Hydrogen. O- 16.00/18.016 x 100 = . 88.81 . Sophomore Open House. March 31, 2023. Why Study Economics?. Intellectual reasons. . Economics is a unique combination of. Scientific method. Social concerns. Practical reasons. Good starting point for professional schools. . New program regulations information session. Time: . February 1. st. , 2018 . 17:00 . – . 17:45. Location: . Altes. . Amstgericht. (AA). Current Program . Overview. Area: Research Methods (12 Credit Points) .