State Record for Stenamma foveolocephalum (Hymenoptera: Formicidae) in Missouri

We report the first known collection of Stenamma foveolocephalum (Hymenoptera: Formicidae) from Missouri. Two specimens were collected in pitfall traps during a field study at Sand Prairie Conservation Area, Scott County, Missouri

Is Deflation depressing? Evidence from the Classical Gold Standard

We distinguish between good and bad deflations. In the former case, falling prices may be caused by aggregate supply (possibly driven by technology advances) increasing more rapidly than aggregate demand. In the latter case, declines in aggregate demand outpace any expansion in aggregate supply. This was the experience in the Great Depression (1929-33), the recession of 1919-21, and may be the case in Japan today. In this paper we focus on the price level and growth experience of the United States and Canada, 1870-1913. Both countries adhered to the international gold standard. This meant that the domestic price level was largely determined by international (exogenous) forces. In addition, neither country had a central bank which could intervene in the gold market to shield the domestic economy from external conditions. We proceed by identifying separate supply' shocks, money supply shocks and demand shocks using a Blanchard-Quah methodology. We model the economy as a small open economy on the gold standard and identify the shocks by imposing long run restrictions on the impact of the shocks and on output prices. We then do a historical decomposition to examine the impact of each shock on output. The results for the U.S. are clear: the different rates of change in the price levels before and after 1890 are attributed to different monetary shocks, but these shocks explain very little of output growth or volatility, which is almost entirely a response to supply' shocks. For Canada the results are murkier. As in the U.S., the money supply shocks before 1896 are predominantly negative and after that are largely positive. However, they are non-neutral, and relative to the U.S., money supply shocks play a larger role in determining output behavior in Canada. The key conclusion of our analysis is that the simple demarcation of good vs. bad deflation, where either prices fall because of a positive supply shock, or prices fall because of a negative demand (money) shock does not capture the complexity of the historical experience of the pre-1896 period. Indeed, we find that prices fell as a result of a combination of negative money supply shocks and positive supply shocks.

Can paraphrasing increase the amount and accuracy of reports from child eyewitnesses?

Young children’s descriptions of sexual abuse are often sparse thus creating the need for techniques that elicit lengthier accounts. ‘Paraphrasing’, or repeating information children have just disclosed, is a technique sometimes used by forensic interviewers to clarify or elicit information. (e.g., if a child stated “He touched me”, an interviewer could respond “He touched you?”). However, the effects of paraphrasing have yet to be scientifically assessed. The impact of different paraphrasing styles on young children’s reports was investigated. Overall, paraphrasing per se did not improve the length, richness, or accuracy of reports when compared to open-ended prompts such as “tell me more,” but some styles of paraphrasing were more beneficial than others. The results provide clear recommendations for investigative interviewers about how to use paraphrasing appropriately, and which practices can compromise the quality of children’s reports

70 Years of Central Banking: The Bank of Canada in an International Context, 1935-2005

Bordo and Redish examine the evolution of central banking over the past 70 years and identify periods where Canada was either a notable innovator with regard to central banking practices or appeared to be following a slightly different course. They note that global forces seemed to play an important role in determining inflation outcomes throughout the 70-year period, and that Canada and the United States experienced roughly similar inflation rates despite some important differences in their monetary policy regimes. Canada, for example, was comparatively late in establishing a central bank, launching the Bank of Canada long after most other industrial countries had one. Canada also operated under a flexible exchange rate through much of the Bretton Woods period, unlike any other country in the 1950s and early 1960s; adopted inflation targets well before most other central banks; and introduced a number of other innovative changes with regard to the implementation of monetary policy in the 1990s.

Seventy Years of Central Banking: The Bank of Canada in International Context, 1935-2005

On the seventieth birthday of the Bank of Canada, we evaluate the Bank's contribution to monetary policy in an international context. We focus on: the reasons for the establishment of the central bank in 1935, its unique record of floating in a sea of fixed currencies under Bretton Woods; its experience with the Great Inflation and monetarism; its pioneering adoption of inflation targeting; and recent innovations in the payments and the phasing out of reserve requirements.

Electrodynamics at non-zero temperature, chemical potential, and Bose condensate

Electrodynamics of charged scalar bosons and spin 1/2 fermions is studied at non-zero temperature, chemical potentials, and possible Bose condensate of the charged scalars. Debye screening length, plasma frequency, and the photon dispersion relation are calculated. It is found that in presence of the condensate the time-time component of the photon polarization operator in the first order in electric charge squared acquires infrared singular parts proportional to inverse powers of the spatial photon momentum k.Comment: Two references and explanatory comments are added according to the referee's suggestions. The paper is accepted for publication in JCA

Comparative Response of Two Hydrilla Strains to Fluridone

Experiments were conducted in a controlled-environmental growth chamber to evaluate the response of two strains of the invasive submersed plant Hydrilla verticillata (L.f.) Royle to fluridone (1-methyl-3-phenyl-5-[3-trifluoromethyl)phenyl]- 4(1H)-pyridinone). (PDF has 6 pages.

Wh-movement vs. scrambling: The brain makes a difference

(no abstract