Pittsburgh, MLA 2006

Excerpt: ... The Impact of Technology on the User Education Process Health Sciences Library System, University of Pittsburgh Advances in technology have revolutionized approaches to instruction including videoconferencing, online tutorials, and outreach and liaison services. The purpose of this study was to determine the influence of technology on traditional library-based classroom instruction programs over a seven-year period. Jill E. Foust, MLS Figure 4. Total Class Attendance Upward Trend s 300 Purpose Figure 1. Average Class Attendance Upwards Trends 18 16 Average Class Attendance 14 Figure 7. Results Summary Class Name Average Attendance Trends Downward Trend (see Figure 3) Downward Trend (see Figure 3) Upward Trend (see Figure 1) Upward Trend (see Figure 1) Downward Trend (see Figure 3) Downward Trend (see Figure 3) Flat Trend (see Figure 2) Flat Trend (see Figure 2) Downward Trend (see Figure 3) Downward Trend (see Figure 3) Flat Trend (see Figure 2) Flat Trend (see Figure 2) Downward Trend (see Figure 3) Tota ...

Wellesley, ECON 232

Excerpt: ... atural experiment: looks at pairs of DRGs (more and less complicated) a. DRG changed with higher reimbursement for more complicated cases and lower reimbursement for the less complicated 2. Found: when the spread was larger, there was more upcoding, "sophisticated" upcoding, financial incentives matter d. Medicare's finances i. Projections 1. 4% of federal budget of 1970; 16% now 2. Expected to be 28% of GDP in 2082 ii. Why are Medicare's costs rising? 1. Adding part D (very recently) 2. General upward trend in HC costs (technology) 3. Aging (fewer workers per medicare beneficiary) a. Living longer b. Baby boomers (1946-64) c. Lower fertility rates 4. "Pay as you go" system ...

Allegheny, E 466

Excerpt: ... 1. In the simple model Yt = 1 + 2 X t + et we know that the following is true about the error terms: et = .8et -1 + u t a. Explain what are the consequences of this for the least-squares estimators. b. Explain how you would estimate this equation. c. What is correlation between et and et-1 in the above? 2. Demand for cosmetics was specified as COSMi= 1+ 2PCOSMi+ 3PIi+ 4Ti+ei Where COSM, PCOSM, PI, and T are expenditure on cosmetics, price of cosmetics, personal income, and a linear time trend factor that measures the upward trend in consumption of cosmetics. Data for years 1959 to 1983 was used to estimate the following 7 regressions. Consider the full model (the first row) and answer the following questions in each case by testing relevant hypotheses. Null and alternative hypothesis and the rejection region must be explicitly specified. 3. In the simple model Yt = 1 + 2 X t + et , we know that X t = 1 + 2 ut where ut is a random error term. Which one of the gauss Mearkov conditions as we studied them i ...

E. Kentucky, ECO 331

Excerpt: ... 9 1973 2006 Gross domestic product 865.2 Population (000s) GDP per capita ($000s) 122 7.1 4,342 212 20.5 11,319 300 37.8 U.S. GDP per Capita, 1929-73 & 73-06 Trends: 2.19% and 1.87% 40.0 35.0 30.0 25.0 Y2k$ (000s) 20.0 15.0 10.0 5.0 1920 1930 1940 1950 1960 GDP 1970 Trend 1980 1990 2000 2010 U.S. Real GDP per capita (2000 dollars) 40,000 9/11/2001 First oil price shock 30,000 long-run upward trend . 20,000 Great Depression 10,000 Second oil price shock World War II 0 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 Employment to Population Ratio Persons aged 16 and older 66 64 62 60 Percent 58 56 54 52 50 1940 1950 1960 1970 1980 1990 2000 2010 U.S. unemployment rate (% of labor force) 30 25 20 15 10 5 0 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 Unemployment Rate 1947-2006 10 9 8 7 Percent 6 5 4 3 2 1940 1950 1960 1970 1980 1990 2000 2010 U.S. Inflation Rate based on CPI 25 20 15 10 Percent 5 0 -5 -10 -15 1910 1920 1 ...

Stanford, ECON 155

Excerpt: ... Economics 155/Earth System 112 Stanford University Spring Quarter 2007 Suggested Solutions for Problem Set 6 1. Weak sustainability requires that the value (i.e. an index) of the overall capital stock (or overall "productive base") be maintained - no particular type of capital needs to be maintained. In principle, the index is meant to indicate the level of well-being associated with a given combination of capital assets. The index is higher, the greater the level of well-being associated with the capital stocks under consideration. In contrast, the "strong sustainability" notion requires that particular capital stocks - KH, KN, KR - be maintained. Because of the historical upward trend in KH and KR, "strong sustainability" is often framed solely in terms of maintaining KN. An even stronger sustainability notion "very strong sustainability" would require not only that KH and KR be maintained but also that particular categories of natural capital be maintained as well; if every resource were maintaine ...

Harvard, ECON S-10ab

Excerpt: ... Federico Nusymowicz Lecture 22 Explain what have happened with the debt levels of households, corporations, and the Government in the U.S. during the last 50 years. Use the handout on Outstanding debt from Lecture 22. In 1950, the government's outstanding debt to GDP ratio was high (almost 0.9), which is expectable right after WWII. From then on, it showed a steadily declining pattern right up to 1981, when Reagan's administration began in full swing and drove government debt back up. This pattern continued right up until 1996, when the debt ratio slightly decreased, only to start climbing back up again during the 2001 recession to the current level of 0.64. The corporate debt to GDP ratio is much easier to explain because it has followed, for the last 5 decades, a clear upward trend with relatively few fluctuations. Starting at 0.52, today the ratio is more than double, at 1.16. The household debt to GDP ratio shares this pattern, with the notable exception of a plateau from the late 60's to the early 80's, ...

UWO, ECON 1020

Excerpt: ... r force participation rate = (Labour force Working-age population) 100. The employment-to-population ratio is the percentage people of working age who have jobs. Employment-to-population ratio = (Number of people employed Working-age population) 100. The labour force participation rate and the employment-to-population ratio show upward trend s. The unemployment rate increases in recessions and decreases in expansions. The upward trend s in the labour force participation rate and the employment-to-population ratio are accounted for mainly by the increasing participation of women in the labour market. The most accurate measure of the aggregate amount of labour employed is aggregate hours. Aggregate hours are the total number of hours worked by all the people employed, both full time and part time, during a year. Aggregate hours have an upward trend . Fluctuations in aggregate hours coincide with the business cycle. Average weekly hours per person have a downward trend mainly because the number of part-time ...

UMass Dartmouth, MAR 110

Excerpt: ... o a few 10s of thousands of years and are overlapping. Note that present-day temperatures are colder than much of history and pre-history. ( XX) Temperature .a Climate Change PROXY varies on many time scales 4 3 2 1 0.57 0.225 Billion Years Ago 0.065 0.002 Figure 28.6 Multiple Climate Change Windows Slices of the (below) 4.6 billion year estimated temperature show (above-1) the basic temperature decrease over the past 65 million years since the asteroid impact wiped out the dinosaurs, (above-2) the modest temperature increase 10kya after the Ice Age (peaked 20kya) followed by a wavering decrease into the Little Ice Age 500yra, before (above-3) the warming trend of the past 100 years or so. 25 November 2007 MAR 110 Lec28 Climate Change I 4 Climate Change: Multiple Time-Scales Time- Hypothetical Climate History with Two Time Scales ~35 ~40 ~40 .an Upward Trend + 35-40 Year Cycle 35Figure 28.7 Model Climate Variation With Two Time Scales This hypothetical temperature climat ...

Sveriges lantbruksuniversitet, STAT 804

Excerpt: ... This series is likely to be quite stationary over the time span we have been able to observe it, though it may have a nearly perfectly periodic component. Top right: Annual sales of lynx pelts to the Hudson's Bay Company. Note: Clear cycle of about 10 years in length. longer term cycle? Is the cycle produced by a strictly periodic phenomenon or by a dynamic system close to a periodic system? 3 Middle left: Mean monthly flow rates for the Fraser River at Hope. Note: Signs of lower variability at low levels suggesting transformation. Clear annual cycle which will have to be removed to look for stationary residuals. Middle right: Canadian monthly unemployment number. Note: probable presence of slow upward trend ; such a trend should be present in the presence of a growing population. not stationary. trend not too linear with some apparent long term cycles perhaps which produce an S shaped curve. 4 Lower left: Carbon Dioxide above Mauna Loa (a Hawaian volcano). Note: Clear trend an ...

Michigan State University, CSE 848

Excerpt: ... of the best agent of those generated. All runs have unique seeds Each agent starts with 10,000 pounds or US dollars ( depends on the market ) Stocks Analyzed NOTE: Calendar year of 365 days is equal to about 253 trading days Layout Explanation Wealth of the most successful agent against frequency of how often GA was ran Growth in wealth of various strategies over time Percentage of the 1001 runs that performed better than buy andhold strategy Final wealth of various strategies BP Amoco UK Stock #1 Typically consistent upward trend Type 1 and Type 2 beat trend following strategy UK Stock #2 GKN Trendfollowing strategy vastly outperforms all agents Gentle decline early followed by fluctuations near the end UK Stock #3 Hanson Fluctuations followed by steady decline then rally All trader types avoided the decline and instability Type1 managed to exploit small gains during instability UK Stock #4 Lloyds Generally increasing with mino ...

VMI, CH 132

Excerpt: ... de to population increases. Such food staples such as grain are decreasing in production to add to the problem. Population increase will eventually put such a drain on fossil fuels that the United States will deplete its reserves in 15-20 years and have to import much more to fulfill its fossil fuel needs. Others however believe that there is no population increase. They believe to be progress. Population upward trend s are the results of lower death rates and greater life expectancies. When the population increase is compared to the increased gross national product it can be seen that the gross national product has increased much more and it turn proves that population increase stimulates the economy. We may have increased famine and an increased consumption of energy, but in turn we also have declined infant mortality, increased food production and a greater per capita income. The growth of the worlds population is a phenomenon that must be analyzed in greater depth. Is it a problem? Is it merely a sid ...

Illinois Tech, MATH 149

Excerpt: ... <STUDYGUIDES08C.TXT> {5-9-2008} Math 149 Spring 2008 Final Study Guide, Part III - Chapter 6 Concept Check, p. 378: 1,2,3,4,5 Exercises: 1-6, 7-11, 12-16 Chapter 9 Concept Check, p. 598: 1 Exercises: 1, 3a, 7 ...